Gemstone Information A-Z
Abalone Pearls; Rare Iridescent Treasures of the Sea
Abalone pearls are extremely rare pearls that come from a marine gastropod and often exhibit beautiful, iridescent blue and green colors, like their attractive sh...
About Agate Stone
Agate is a form of chalcedony quartz that forms in concentric layers in a remarkable variety of colors and textures.
About Amblygonite Gemstones
Amblygonite is a common mineral but a rare gemstone, since transparent specimens are unusual
Informazioni sulla pietra preziosa dell'occhio di gatto dell'actinolite
Actinolite cat's eye information; history, origin & sources: Actinolite gemological properties identification, mythology, cleaning care. Buy actinolite online.
Agate Geode Information - A dull rock bursting with gem...
It takes a skilled eye to spot an agate geode. Egg-shaped bumpy rocks, lying in river beds or desert floors, might look ordinary until they are cracked open.
Agate Information - A gemstone in an array of colors an...
Stripes, swirls, bands, iridescent colors and tree-like inclusions are just some of the attractions found in this fascinating gemstone and it doesn’t end there. D...
Agatized Fossil Coral - A captivating gemstone in so ma...
Ancient coral reefs, covered in sediment as oceans fell, turned into rock over millions of years capturing the delicate patterns forever in a unique gemstone.
Informazioni sulla pietra preziosa di alessandrite
Alexandrite Gemstone Info: About alexandrite value, origin, sources, crystal healing power, mythology, and how to identify and care for alexandrite gems, rings an...
All About Garnets - More than just January's Birthstone
So often thought of by many as simply red, this unique gemstone has in fact two of the rarest and most valuable green specimens in its wide ranging family.
Almandine Garnet Information - A deep red lustrous gems...
This red gem is January's birthstone, it's very durable, affordable and readily available. Often cut into cabochon or dome shapes, they make attractive jewelry.
Amazonite Information - A blue green gemstone loved by ...
The soothing shades of green and blue in this gem reflect the hues of the Amazon River and Jungle it was named after. No wonder Ancient Egyptian royalty adored it.
Amber Gemstone Information. Learn about amber gemstone including origin, value, rings, jewelry and care. Amber is an organic gem often cut as cabochons
Amethyst Information - The finest purple co...
Amethyst is the most valuable and popular quartz and, with its range of deep purple colors, arguably, it is the most beautiful quartz out there.
L'ametrina dalla Bolivia
Natural ametrine comes almost entirely from one location, the Anahi mine in Bolivia. New cutting styles are making this unique gem even more popular.
Informazioni sulle pietre preziose ametrino
Ametrine Gemstone Information: Bicolor ametrine gem value, sources & crystal healing. Identify & care for ametrine (citrine and amethyst). Buy Ametrine Gemstone
Ammolite Gemstones - A rare rainbow of colors from the ...
This iridescent gemstone formed over millions of years from the shells of prehistoric sea creatures into a rainbow of flashing colors and beguiling patterns.
Andalusite Information - Fall colors play on this rare ...
Brown, green and amber are the base colors but it is the flashes of pink, orange and red that really set this gemstone apart and bring comforting autumnal images
Informazioni sulla pietra preziosa di andesina labradorite
Andesine Labradorite Information: Andesine origins, history, value, gemological properties & crystal powers and meanings - learn how to clean, identify & buy ande...
Apatite Gemstone Information - An obscure gem in striki...
You may not know the name Apatite yet, but you will. This gemstone is found in eye-catching neon or electric blue as well as sumptuous yellows, greens and violets.
Apatite Gemstones - They are a lot more common than you...
Large, clear, stunning apatite gemstones are so rare you may not have seen one before but the mineral it is made of is everywhere - even in your teeth and bones.
Aquamarine Information - Get the facts, figures and sto...
A drop of the ocean captured in a gemstone. Find out all there is to know about Aquamarine, how to get the best value, what is the right cut, what spiritual mean...
Australian Boulder Opal - Unique colors in a unique form
The rainbow play-of-color effect of these opals is vibrantly maximized by its still being attached to the dark rock from which it was mined. See how and where here
Gemme di avventurina
Aventurine is used for several kinds of gemstones which bear a resemblance to aventurine glass from Italy.
Informazioni sulla gemma di avventurina
Aventurine Gemstone Information: Aventurine quartz value, gemological properties, crystal meanings; buying, identifying & caring for aventurine
Informazioni sulla pietra preziosa axinite
Axinite Gemstone Information. Axinite value, origin, gemological properties, crystal meanings. How to clean, identify axinite gems at GemSelect.
Informazioni sul topazio azotico - Il topazio arcobaleno
Azotic is a trade name for topaz gemstone that is enhanced with a fine coating that reflects light in a rainbow of colors and interesting patterns.
Informazioni sulla pietra preziosa di azzurrite
Azurite Gemstone Information: Azurite sources, origin and blue azure color. Learn about azurite gemology, crystal powers, and how to identify and care for azurite...
Beryl Family - The Royal family of the gem kingdom
A fascinating family of rare gemstones, cousins distinguished by color, green for emerald, blue for aquamarine, yellow for golden beryl, pink for morganite and th...
Bixbite: berillio rosso
Also known as red emerald, bixbite is a very rare gemstone found only in the Wah Wah mountains of Utah
Informazioni sulla pietra preziosa opale nera
Black Opal Gemstone Information: Black Opal value, gemological properties, crystal meanings; buying, identify & caring for black opal
Tormalina Nera - Distinguiti dalla massa
Although tourmaline gemstones are known for their array of colors, the most common type found in nature is black. Perhaps the most easily available, high quality ...
Bloodstone Gemstones - A green stone that is legendary
Legend has it that this unusual opaque gemstone was flecked with the blood of Christ during his crucifiction and has since been known as "the martyr's stone"
Bloodstone Information - Rich history to go with the ri...
Flecks of red are sprinkled on a deep forest green background in this legendary gemstone surrounded by myths and mystical powers as well as earthly beauty
Blue Topaz Gems: Learn About Blue Topaz Gemstones and T...
Blue topaz is one of the most popular colored gemstones. There are many trade names for the different shades of blue, including Swiss blue, London blue and Sky bl...
Boleite Gemstones - A collector's dream from the desert...
If you are looking for the strange or unusual, look no further than this rare mineral with a fascinating crystal make up. More like a chemistry project than a gem...
The botryoidal crystal habit is interesting both for its unique shape, and the fact that is commonly adopted by a number of quite different minerals
Boulder Opal Information - Magical colors in an organic...
A distinctive play-of-color embedded in a shadowy background makes these gemstones a rarely found and curious piece of nature’s handiwork. Read on.
Informazioni sulla pietra preziosa di calcite
Calcite Gemstone Information: Calcite gem value, origin, gemological properties, crystal meanings. Learn how to clean, identify & buy calcite gems - GemSelect
Calcite, though somewhat soft, is popular with gem and mineral collectors for its luster and interesting colors
Carnelian Information - An orange gemstone with luck on...
Revered for centuries by every civilization since the Ancient Egyptians, this reddish colored gemstone has been praised for its beauty and deep spiritual strength.
Informazioni sulla pietra preziosa naturale di cassiterite
Cassiterite Gemstone Information: Cassiterite value, gemological properties, crystal meanings. How to clean & identify cassiterite gems
Cat's Eye Aquamarine Info - A true phenomenon of rare b...
Cat's eyes are an unusual occurrence in the world of gemstones and these are a rare beauty indeed conjuring up images of exotic and intelligent Siamese Cats
Cat's Eye Diaspore Gemstone Information
Cat's Eye Diaspore Gemstone Information: Cat's Eye value, gemological properties, crystal meanings. How to clean & identify diaspore gems & jewelry: GemSelect
Cat's Eye Gemstone - A rare optical effect caused by in...
Light reflected by fibers or cracks within a gemstone can make them resemble the slit eye of a cat, a phenomenon known as chatoyancy. Most famous are exotic Tiger...
Cat's Eye Moonstone Information - glowing with spiritua...
Moonstones are legendary for their celestial appearance and divine energy. Add this to the protective potency of the Cat's Eye and you will have untold strengths
Cat's Eye Opals - A Mysterious and Exotic Gemstone
A very rare form of opal that displays one of the brightest and most defined cat's eyes against a very seductively colored background. Strong spiritual powers.
Cat's Eye Scapolite Gemstone Information
Cat's Eye Scapolite Gemstone Information: Cat's Eye value, gemological properties, crystal meanings. How to clean & identify scapolite gems & jewelry: GemSelect
Cat's Eye Tourmaline Gemstone Information
Cat's Eye Tourmaline Gemstone Information: Cat's eye value, gemological properties, crystal meanings. How to clean & identify tourmaline gems
Cat’s Eye Apatite Gemstones - A unique reflection of light
Only a handful of gemstones display this unusual effect where internal flaws cause the appearance of a fine slit in the gem uncannily resembling the eye of a cat.
Chalcedony Gemstone Information - Subtle colors with an...
The best Chalcedony comes in light blue or lilac colors with a luminous translucent body and a waxy polish. Discover more about this special quartz crystal here.
Chalcedony is used to refer to all types of cryptocrystalline quartz, but also to refer specifically to the blue or lavender variety.
Charoite Information - Gorgeous purple gemstone from Si...
Feather-like swirls of white and dabs of color play on lavender, violet and purple backgrounds in this lustrous gemstone found in the frozen mountains of Russia
Chinese Chicken's Blood Stone
Chicken's blood stone, also known as Changhua stone or Balinyouqi stone is a rock that has a bright red color. It is often carved into ornaments, such as seals.
Chocolate Opal Gemstones - Tempting enough to eat!
This unusual translucent or opaque opal has a waxy luster over a smoky chocolate background upon which the best gemstones display a gorgeous play-of-color.
All the choices in rich green gemstones are expensive: emerald, tsavorite and chrome tourmaline. But chrome diopside is changing the market for fine green gems.
Chrome Diopside Information - Say hello to this elegant...
This gemstone, collected from the edge of the Arctic Circle, has deep sumptuous greens that match the finest gemstones available and at a fraction of the price.
Chrome Tourmaline Information - an extremely rare green...
Naturally occurring green gemstones are very rare but the Chrome tourmaline with its deep forest green and ability to change color depending the viewing angle mak...
Chrysoberyl Cat's Eye Gemstone Information
Chrysoberyl Cat's Eye Gemstone Information: Cat's eye value, gemological properties, crystal meanings. How to clean & identify chrysoberyl gems
Informazioni sulla pietra preziosa di crisoberillo
Chrysoberyl Gemstone & Jewelry Information: Chrysoberyl gemstones include cat's eye & color change alexandrite. Learn about value, gemological properties & crysta...
Chrysoberyl Gemstones - Why are they so unappreciated?
Chrysoberyl has a hardness, brilliance and luster just a fraction behind illustrious ruby and sapphire and are a delightfully subtle greenish-yellow color.
Gemme di crisocolla
Chrysocolla is one of the copper-bearing gems, and is often found mixed with malachite, azurite, turquoise or quartz.
Chrysocolla Info - Bright blues and greens with lively ...
Dabs of red, yellow, russet and purple decorate the turquoise and teal backgrounds on this fascinating gemstone, conjuring images of lagoons and tropical isles.
Informazioni sulla crisolito
Chrysolite was the name used in the ancient world for many gold and greenish-yellow gemstones, especially peridot, learn more about chrysolite gemstones
Informazioni sulla pietra preziosa di crisoprasio
Chrysoprase Gemstone Information: Chrysoprase gemstone value, gemological properties, crystal meanings. How to clean & identify Chrysoprase gems
Citrine Information - The most popular yellow gemstone ...
The colors of Citrine Quartz range from light straw to earthy brown with sumptuous oranges in between and are so evocative of autumn that it is no wonder that it ...
Citrine Properties - The golden gem that radiates posit...
Citrine quartz and other yellow gemstones have been celebrated for centuries for their spiritual healing properties. Discover the mysterious powers of this ancien...
Informazioni sulla pietra preziosa di Clinohumite
Clinohumite Gem and Mineral Info, learn about clinohumite gemstone sources, origin and gemological properties. Read about clinohumite's many metaphysical alternat...
Informazioni sulla pietra preziosa diaspore a cambiamento di colore
Color Change Diaspore Gemstone Information: Zultanite and Csarite are popular trade names for color change diaspore. Learn about diaspore origin, value, and more.
Color Change Garnet Information - they swap before your...
These rare gemstones will switch from one color to another in an instant when taken from sunlight to electric light and even candle light. An amazing phenomenon.
Color Change Gemstones - Change can be a good thing
There are few gemstones with the unique ability to change color under different lights. This dramatic and impressive phenomenon has to be seen to be believed.
Color Change Sapphire - An exceptionally rare phenomenon
These unique gemstones can change color dramatically when viewed under different light sources but how does it happen? Discover the how, what and why here.
Conch Pearls, le regine rosa fiammate
Conch pearls are extremely rare pearls that come from marine gastropods, like the queen conch, are often oval and pink with a porcelain-type luster or flamed pattern
Informazioni sulla pietra preziosa di corallo
Precious Coral Gemstone Information: Coral gems are very rare & highly sought-after; learn about natural precious coral & agatized fossil coral sources, origin & ...
Informazioni sulla perla coltivata
Cultured pearls are produced by mollusks, helped along by humans. Both freshwater and saltwater species are produced
Informazioni sulla pietra preziosa Danburite
Danburite Gemstone Information, Learn about rare white danburite gemstones and gemology: sources, origin & value, and the metaphysical & crystal healing meanings ...
Danburite is a colorless to light pink, yellow or brown gemstone first discovered in Danbury, Connecticut
Pietre di granato demantoide
Demantoid is the rarest and most valuable of all the garnets, and is one of the rarest of all colored gemstones.
Demantoid Garnet Information - brilliant greens from Ru...
Mined in the Urals, Demantoid is Garnet's rarest and priciest variety, a rich deep green with a dazzling luster and on occasion distinctive horsehair inclusions
Dendritic Agate - Trees and branches trapped in a gemstone
Traces of minerals that have seeped into this gemstone's structure have created tree- or fern-like patterns just below the surface of this fascinating stone.
Informazioni sulla pietra preziosa dell'agata dendritica
Dendritic Agate Gem Information, learn all about dendritic agate gemstones, sources, origin and value. Read about the metaphysical and crystal healing powers of d...
Informazioni sulla pietra preziosa dei diamanti
Diamond Gem Information: Learn about fancy color & white diamond gemstone value, sources & history. Read about metaphysical crystal healing & how to care for diam...
Quartz intergrown with the mineral dumortierite is a vivid blue or violet blue, and is often used as a gemstone or for carving
Informazioni sulla pietra preziosa al quarzo dumortierite
Dumortierite Quartz Gem Info: Learn about blue dumortierite quartz value, sources & properties. Learn metaphysical crystal healing & how to care for dumortierite ...
Emerald Information - Vivid green gemstones of unequale...
What is it about an emerald that has made it admired and desired for centuries? What is the secret behind its allure? Discover the history, facts and legends of ...
Informazioni sulla pietra preziosa di Enstatite
Learn about enstatite gemstones; history & origin, how to identify enstatite, gemological properties, related gems, enstatite mythology; how to care for enstatite...
Informazioni sulla pietra preziosa epidoto
Epidote Gemstone Info: Learn about epidote gems, epidote gemology, identification, origin, metaphysical properties & how to care for epidote gems.
Informazioni sulla pietra preziosa del feldspato
Feldspar is the most abundant mineral in the world, and includes gem varieties such as moonstone and andesine.
Fine Green Sapphire - A fancy gemstone colored from min...
Sapphires are blue aren't they? Not always, fancy sapphires can be yellow, orange, pink and purple. Discover all you need to know about green sapphires here.
Informazioni sulla pietra preziosa dell'agata del fuoco
Fire Agate Gemstone Information: Learn about fire agate history, gemology & identifying; buying fire agate gems & about metaphysical crystal healing
Fire Opal Gemstone - A Mexican sunset captured in a gem
This gemstone is unlike most opals as it is often facet cut and just a single color but discover facts behind the exceptional colors and distinctive luster here.
Informazioni sulla pietra preziosa fluorite
Fluorite Gemstone & Mineral Information: Learn About Fluorite Origin, Sources, Gemstone Value & Properties; Fluorite Varieties, Metaphysical Crystal Healing & Car...
Fluorite: The Collector's Stone
Fluorite is very popular with collectors, due to its wide range of colors. But fluorite also has some fascinating properties and some useful practical applications.
Informazioni sulla pietra preziosa di corallo fossile
Fossil Coral Gemstone Information: Learn about agatized fossil coral quartz gem sources, origin, value & gemological properties. Learn how to identify & buy fossi...
Garnet Information - Much more to it than flaming reds
Charming reds at affordable prices, deep vivid greens to rival emeralds, color-changes from red to blue, oranges like sunsets, this unique gemstone has the lot.
Informazioni sulla pietra preziosa Gaspeite
Gaspeite Gemstone & Mineral Information: About green gaspeite value, sources, gemological properties & metaphysical crystal healing meanings; Learn about gaspeite...
Gemstone Names - How did those gemstones get their names?
Investigate the origins and meanings behind the fascinating and often bizarre names given to the precious stones we love and desire. All the answers are here.
Silice della pietra preziosa
Gem Silica or gem chrysocolla is a rare form of chalcedony colored by copper
Gemstone Type List: Guide to Precious & Semi-Precious C...
List of precious & semi-precious gemstones: With over 130 gem varieties, our gemstone index will help you find the perfect colored stone for your jewelry & crysta...
Gemstones By Date - Find the exact match by Date / Birt...
Our Gemstones By Date page will give you the perfect matching gemstone or gemstones in some cases for the date selected.
Golden Beryl Information - Truly a Gift from the Sun
Gorgeous golden colors divide this gemstone from its esteemed brothers and sisters in the beryl family. Learn more about this stunning yet unsung beauty here.
Informazioni sulla pietra preziosa di gosenite
Goshenite Gemstone Information. About goshenite, a colorless white beryl: sources, value, gemological, crystal meanings, identifying, buying & caring for beryl gems.
Goshenite is the colorless form of beryl, often cut as a gemstone due to its excellent clarity and transparency
Grandidierite Info - Fantastically Rare Sea-foam blue G...
On an island famous for its exotic flora and fauna, perhaps Madagascar has found something stranger than lemurs and fossas - the rarest of gemstones, Grandidierite
Green Seraphinite information - The heavenly gemstone o...
With a color and pattern looking as though an artist painted white feathers on its smooth surface you will find this gemstone so alluring that you have to have one.
Granato grossularia: gemme di granato grossularia
The grossularite garnet group includes grossular, hessonite, leuco, hydrogrossular and tsavorite.
Informazioni sulla pietra preziosa del granato grossularite
Grossularite Garnet Info: About green grossular gemstone value, sources, gemological properties; metaphysical crystal healing & meanings; buying & caring for gros...
Informazioni sulle pietre preziose Hackmanite
Hackmanite gem and mineral info: Learn about hackmanite gemstone origin, value, sources and properties. Learn about hackmanite tenebrescence and its many metaphys...
Hackmanite exhibits an unusual phenomenon known as reversible photochromism, where a mineral changes color when exposed to sunlight
Informazioni sulla pietra preziosa ambergite
Hambergite Gem and Mineral Info: Learn about hambergite gemstone origin, value, sources and properties. Learn about hambergite's metaphysical abilities
Pietre preziose di ambergite
Hambergite is a nearly colorless gemstone with some distinctive properties, such as a very low density and a very high double refraction
Hawk's Eye Gemstone Information
Hawk's Eye Gemstone Information: Hawk's eye is a blue gray chatoyant variety of quartz, related to tiger's eye & pietersite. Learn about rare hawk's eye gems
Hematite Information - A polished gemstone with a metal...
This unusual gemstone takes on a silvery or mirror-like appearance when cut into cabochons. Add its spiritual significance and you have a very desirable jewel.
Gem-quality hemimorphite is usually blue or green, and bears some similarities to chrysocolla, smithsonite and turquoise.
Informazioni sulla pietra preziosa emimorfite
Hemimorphite Gemstone, Mineral and Jewelry Information: Learn about hemimorphite gemstone origins, value, sources and metaphysical properties.
Informazioni sulla pietra preziosa del granato di hessonite
Hessonite Garnet Gemstone Info: Learn about hessonite grossularite garnet gemstone origin, value, sources and properties. Learn about buying and identifying hesso...
Informazioni sulla pietra preziosa nascosta
Hiddenite is a form of spodumene containing chromium, but is rare and for the most part known only to collectors. The green color varies from a yellowish to a blu...
Orneblenda e gemme
Hornblende is an important mineral in the gem industry. It is mostly famous for being an impurity found in gemstones such as anyolite, ruby-zoisite, moss opal and...
Informazioni sulla pietra preziosa Howlite
Learn about howlite gemstones; history and origin, how to identify and buy howlite, gemological properties, related gems, howlite mythology, jewelry ideas and car...
Hyalite Opal Information - Real Life Kryptonite from Me...
Exceptionally rare fluorescent color-change opals. These gemstones can change color dramatically and instantly when exposed to ultraviolet light. See it to believ...
Informazioni sulla pietra preziosa di Idocrase
Idocrase Gem and Mineral Info: Learn about idocrase gemstone origin, value, sources and properties. Learn about idocrase's metaphysical abilities
Gemme Idocrase Vesuvianite
Idocrase is a rare gemstone, usually found in shades of green. Transparent specimens are very rare.
Imperial Topaz Info - The Alluring Gem of the Russian C...
Sought by Russian royalty, the color of the setting sun from deep red to pale orange when tilted in the light, Imperial Topaz is fit for a King or a Czar!
Informazioni sulla pietra preziosa Iolite
Iolite Cordierite Gemstone Information: Learn about Iolite's unique color pleochroism: violet blue, yellow gray and light blue in the same stone.
Jacinth is a traditional name for orange or red zircon. Though no longer in use, it is part of the history of gemstones
Informazioni sulla pietra preziosa di giada
Learn about jade; jadeite and nephrite, history and origin, how to identify jade, gemmological properties, related gems, jade mythology and how to care for jade
Informazioni sulla pietra preziosa di giadeite
Jadeite Gemstone and Jewelry Information; Jade history and origin, how to identify jadeite, gemological properties, mythology, and caring for jadeite gems
Jasper Gemstones - Earthy tones tinted with splashes of...
Stripes, spots, swirls, flaming rosettes and feathery patterns decorate this ancient and organic looking gemstone giving each one its own unique characteristics
Informazioni sulla pietra preziosa Kornerupine
Kornerupine, or prismatine, is a rare pleochroic collector's gemstone known to occur in variety of colors, including white, pink, yellow, brown, green and blue.
Pietre preziose Kornerupine
Kornerupine is a rare gemstone found in Greenland, Sri Lanka, Madagascar and Tanzania
Kunzite Gemstones - The must-have pink gem for evenings
If you want a pink gemstone in a large size that dazzles on your finger or sparkles around your neck but won’t break the bank, then a kunzite will be the answer t...
Informazioni sulla pietra preziosa di cianite
Kyanite is a layered crystal with a luster that is vitreous to almost pearly, and is usually found in a sapphire-like blue.
Labradorite Info - Iridescence the secret behind the da...
The color play on this gemstone is so unique that a new word was created to describe it, Labradorescence. First a special mix and make-up of minerals is needed.
Lapis Lazuli Information - The timeless deep blue gemstone
This lustrous violet-blue gemstone with flecks of gold has accompanied mankind on every step of our 10,000 year journey from Stone-Age to modern civilization.
Lapislazzuli: Pietra degli Antichi
Lapis, the original blue gemstone of antiquity, has a long and romantic history. It has been mined continuously in Afghanistan for over 6,000 years.
Larimar Infomation - Capturing Caribbean vitality in a ...
Imagine lying back, staring into a radiant blue sky scattered with wispy high clouds, relaxation and contentment washes over you. That is the power of Larimar
Lemon Quartz Gemstone - Capturing the dazzling radiance...
This appealing gemstone is often confused with citrine quartz but this is not the case. How is this bright beauty created and how does it differ from citrine? Rea...
Informazioni sulla pietra preziosa di lepidolite
Learn about lepidolite; history and origin, how to identify lepidolite, gemmological properties, related gems, lepidolite mythology, jewellery ideas and how to ca...
Informazioni sulla pietra preziosa di malachite
Learn about malachite; history and origin, how to identify malachite, gemmological properties, related gems, malachite mythology, and how to care for malachite
Malaya Garnet Information - the rejected gem that came ...
Once discarded as worthless, Malaya Garnets are now highly prized by gem collectors for their orange or peachy color with scintillating flashes of red and fire
Informazioni sulla pietra preziosa del granato del Mali
Learn about Mali garnet; history and origin, how to identify Mali garnet, gemological properties, related gems, Mali garnet mythology, jewelry ideas and how to ca...
Gemme granato di Mali
Mali garnet is a mixture of grossular and andradite garnets. It was first discovered in the West African nation of Mali in 1994
Marcasite e pirite
Pyrite and marcasite have the same chemical composition, but different structures. Only one of them can be used as a gemstone
Maw-Sit-Sit della Birmania
Maw-sit-sit is one of the more unusual gemstones in the world, from its curious name to its variable chemical composition.
Informazioni sulle pietre preziose Maw-Sit-Sit
Learn about maw-sit-sit; history and origin, how to identify maw-sit-sit, gemological properties, related gems, maw-sit-sit mythology, and how to care for maw-sit...
Informazioni sulla pietra preziosa melanite
Learn about melanite; history and origin, how to identify melanite, gemmological properties, related gems, melanite mythology, and how to care for melanite
Mexican Fire Opals - Evoking sunsets in deserts and mou...
This fiery orange and yellow gemstone which is unusual for an opal in its color, clarity and cut is mostly found in the arid hinterlands of Mexico.
Moldavite e tectite
Moldavite is a green to brown form of natural glass resulting from meteorite impact. It is a rare mineral often used as a gemstone
Informazioni sulla pietra preziosa Moldavite
Learn about moldavite; history and origin, how to identify moldavite, gemmological properties, related gems, moldavite mythology, and how to care for moldavite
Moonstone Gemstones - So magical they seem to glow from...
Skilled cutting is needed to reveal this gemstone's heavenly beauty but the result is a unique shimmering display of light and color that is sure to impress.
Moonstone Information - A frozen moonbeam trapped forever
Ancient Romans thought Moonstones so magical that they must be gifts from heaven. Seeing the silky liquid-like surface of this gemstone you can understand why
Informazioni sulla pietra preziosa Morganite
Morganite Gemstone Information: Pink beryl history, origin, mythology and jewelry ideas. Identifying gemological properties & caring for morganite gems
Morganite or Pink Beryl - The emerald's pink cousin.
This delicate pink gemstone is member of the beryl family was named after famous banker and gem collector JP Morgan, who also happened to be Tiffany & Co's best c...
Moss Opal Gemstones - Intriguing branch-like inclusions
Patterns resembling silhouettes of leaves, stems or branches of a plant on a milky background with a glassy surface make this a very captivating gemstone.
Informazioni sulla pietra preziosa madreperla
Mother-of-pearl is a gemstone formed by the nacreous inner shell coating of pearl-producing mollusks, it has an attractive pearly luster and beautiful iridescence
Gemme di madreperla
Mother-of-pearl is a gem made of the nacre that coats the inside of mollusk shells, its pearly luster and iridescence makes it ideal for jewelry use, such as cameos
Muscovite e Fuchsite
Muscovite is a mica that is found in many types of rocks. The green chromium-rich variety is known as fuchsite
Informazioni sulla pietra preziosa di quarzo mistico
Learn about mystic quartz and the high-tech film disposition enhancement applied to colorless quartz and topaz to created Mystic Gems and Azotic quartz and topaz ...
Mystic Topaz Information - A kaleidoscope of colors
A fine coating of titanium applied to a topaz gemstone of fine clarity and sparkle will produce the kaleidoscope of colors known as the Mystic Topaz, a truly eye-...
Carnelian, one of the oldest known gemstones, is a brownish red to red-orange variety of chalcedony or cryptocrystalline quartz.
Informazioni sulla pietra preziosa di giada nefrite
Learn about nephrite jade; history and origin, how to identify nephrite jade, gemmological properties, related gems, nephrite jade mythology, and how to care for ...
Nuummite Gemstone Information
Learn about Nuummite; history and origin, how to identify Nuummite, gemmological properties, related gems, Nuummite mythology, and how to care for Nuummite
Informazioni sulla pietra preziosa di ossidiana
Learn about obsidian; history and origin, how to identify obsidian, gemmological properties, related gems, obsidian mythology, and how to care for obsidian
Ossidiana, un vetro vulcanico
Obsidian is the only natural gemstone which is actually glass, formed from lava that cools without crystal growth
Informazioni sulla pietra preziosa di giada onfacite
Omphacite jade is a variety of jade that is composed of omphacite and jadeite. It is similar to other jade varieties such as jade-albite and maw-sit-sit
Onyx Gemstone Info - This quartz is not just a black stone
Onyx is a multilayered black and white gemstone traditionally carved and engraved but with modern treatments and substitutes do you know what you are buying?
Informazioni sulla pietra preziosa di onice
Learn about onyx; history and origin, how to identify onyx, gemmological properties, related gems, onyx mythology, jewellery ideas and how to care for onyx
Opal Information - More to it than a dazzling play of c...
Discover more about this fascinating gem of many colors. Where it comes from, how it gets its colors, how much one costs and why you need to buy one
Opal: Fire of the Desert - Vivid splashes of fiery color
Look into why this dazzling gemstone was proclaimed Australia’s national gemstone and how its history is interwoven with the country's narrative and culture.
Informazioni sulla pietra preziosa ortoclasio
All about orthoclase, a transparent yellow feldspar resembling citrine quartz or yellow beryl, found primarily in Madagascar.
Gemme in pasta vitrea
Paste is the term used to denote gemstones created from cut glass. The art of paste jewelry reached its peak in the 18th century
Informazioni sulla pietra preziosa pectolite
Learn about pectolite; history and origin, how to identify pectolite, gemological properties, related gems, pectolite mythology, and how to care for pectolite
Informazioni sulla pietra preziosa peridoto
Peridot Gemstone Information: Peridot, sometimes referred to as olivine, is idiochromatic and as a result, is found only in green color.
Pietre preziose di Pietersite
Pietersite is a breccia aggregate of hawks eye and tigers eye, with swirling colors of blue, rusty red, gold and brown
Pietersite Information - Deep dark colored tiger's eye ...
Swirls of orange, red and gold decorate a dark blue background on this intriguing gemstone which shines silkily when polished. Discover more about this quartz.
Pink Tourmaline Gemstones - Hot Pink, Soft Pink, big or...
A hot pink rock on your finger, a flashy pendant around your neck, a delicate pink brooch for that special date, whatever you want a pink tourmaline will be the s...
Precious Beryl Info - There is more to precious beryl t...
Get everything you need to know about one of the most important gemstone groups which include valuable green emeralds, blue aquamarines, red beryls, and goshenite...
Precious Coral Gemstones
Coral is one of the few organic gemstones, and has a long history of decorative use.
Informazioni sulla pietra preziosa prehnite
Learn about prehnite; history and origin, how to identify prehnite, gemological properties, related gems, prehnite mythology, and how to care for prehnite
Prehnite was the first mineral named after an individual. New deposits of this intriguing gem are making it more widely available.
Pyrite Information - A polished Gemstone with a Golden ...
Don’t let the nickname, Fool’s Gold, put you off, this gemstone deserves respect as one of the few available with a shiny metallic finish and dramatic masculine l...
Pyrope Garnet Information - A gemstone of fiery brilliance
This is the classic garnet gem, a red to rival the ruby and used for centuries in decorations and ceremonies. Versatile and affordable, perfect for any jewelry.
Quartz Info - Enviable durability in an array of entici...
Versatile quartz has been sought after for centuries and used for jewelry and spiritual health by nearly every culture. New sources have made these crystals readi...
Informazioni sulla pietra preziosa della pietra di luna arcobaleno
Learn about rainbow moonstone; history and origin, how to identify rainbow moonstone, gemmological properties, related gems, rainbow moonstone mythology, jeweller...
Informazioni sulla pietra preziosa di pirite arcobaleno
Learn about rainbow pyrite; history and origin, how to identify rainbow pyrite, gemmological properties, related gems, rainbow pyrite mythology, jewellery ideas a...
Pietre preziose di scapolite arcobaleno
Rainbow scapolite is a trade name for scapolite gems containing iridescent inclusions, these gems are often cut en cabochon and can display the full spectrum of c...
Alexandrite, a color-change chrysoberyl, is one of the rarest of all colored gemstones.
Ammolite is the fossilized shell of ammonites, which are composed primarily of aragonite, the same mineral that makes up nacreous pearls
Rara tormalina cromo
Chrome tourmaline is a distinct variety of tourmaline, colored by chromium and vanadium.
Rare Chrysoberyl Cat's Eye
Chrysoberyl cat's eye is a rare and exotic gemstone, combining excellent hardness with an especially vivid cat's eye effect.
Chrysoprase is considered the rarest and most valuable gemstone in the chalcedony quartz group.
Rare Fire Agate - An iridescent play of color in this r...
A shimmering lustrous rainbow of colors dance on the surface of this elusive quartz mined in the deserts of Southwestern USA and Mexico. Discover more here.
Rare Garnets: Tsavorite, Spessartite and Rhodolite
The popular image of garnet is that of an inexpensive dark red gem. But there are some rarer varieties -- tsavorite, spessartite and rhodolite -- that have stunni...
Gemma rara sillimanite
Sillimanite is a rare collector's gemstone that is colorless, grayish-white, green, bluish or brownish hues. Transparent, faceted sillimanite gems are extremely rare
Natural spinel is rare and can be difficult to find. The traditional source of the best spinel is Burma, but African spinel is starting to make the gem more avail...
Rare Tourmaline Gemstones - Unique and distinctive vari...
These rare tourmalines have it all, a dazzling range of colors in depths to challenge the finest gems, two or three colors in one crystal, the ability to change c...
Cinnabar, a mercury sulphide that is usually a vivid red, has some unique gemological properties
Gemma di rodocrosite
Rhodochrosite is a manganese carbonate with an attractive soft pink color and interesting variegated markings.
Informazioni sulla pietra preziosa rodocrosite
Learn about rhodochrosite; history and origin, how to identify rhodochrosite, gemmological properties, related gems, rhodochrosite mythology, jewellery ideas and ...
Rhodolite Garnet Information - An elegant rose among th...
Rhodolite garnets get their name from a Greek word meaning rose-colored and when you see these purplish pink to raspberry red beauties you’ll understand why.
Informazioni sulla pietra preziosa rodonite
Learn about rhodonite; history and origin, how to identify rhodonite, gemmological properties, related gems, rhodonite mythology, jewellery ideas and how to care ...
Rhodonite is a rose pink to red gemstone with black dendritic inclusions of manganese oxide
Rose Quartz Gemstone and Jewelry Information: Pink Quartz
Pink Rose Quartz Information. Soft milky pink rose quartz is unique in the gems world. It is associated with love and healing. Read about Rose Quartz Gems & Jewel...
Rose Quartz Information - The Gemstone of Unconditional...
With a history going back to nearly 10,000 years, the exquisite pink-colored Rose Quartz has stunning good looks to go with its powerful spirituality. Discover more.
Rubellite is a pink to red variety of tourmaline, though there are different opinons about exactly what defines rubellite gems, some say it is red and others say ...
Rubellite Tourmaline Information - Flush with rare and ...
A rose by any other name. . . it requires a special pinkish-red color for a gemstone to be considered worthy of the title, Rubellite. Find out what it takes right...
Ruby in Informazioni Fuchsite
Ruby-in-fuchsite is a colorful gemstone composed of ruby (corundum) and fuchsite, sometimes confused for ruby-in-zoisite because of its green and red contrasting ...
Ruby Information - The gemstone of passion and seduction
Our ancestors saw red as the color of fire and blood. Rubies captured these primal elements within and have captivated and beguiled us all since history began.
The vast ruby deposits at Longido in Tanzania are the world's source for anyolite or ruby-zoisite.
Ruby-Zoisite Information - A unique gemstone mixture
An unusual but natural combination of ruby and zoisite crystals in one creating a distinctive red and green stone in large pieces ideal for fancy cutting.
Rutilated Topaz - Beguiling Gemstone with unique inclus...
Rutilated or Rutile Topaz is usually a colorless gemstone with golden thread-like inclusions resembling fibers, hair or straw. No two crystals are alike.
Rutile Quartz Information - A clear crystal with unique...
A transparent and offbeat variety of quartz which has fascinating inclusions, resembling hair or straw, with assorted colors such as golden yellow and coppery red.
Informazioni sulla pietra preziosa topazio rutilo
Learn about rutile topaz; history and origin, how to identify rutile topaz, gemmological properties, related gems, rutile topaz mythology, jewellery ideas and how...
Sapphire Information - The heavenly blue gemstone of ro...
Worn by kings, queens, shahs, maharajas and most famously by princesses this gemstone is virtually unequaled in beauty, allure and value. Why should you own one?
Sard and Sardonyx Gemstones - Let's clear up the confusion
Sard is a reddish gemstone similar to carnelian and sardonyx is a reddish banded gemstone similar to onyx, they are quartz but are they agate or chalcedony?
Scapolite Gemstone Information
Scapolite gemstone information: Learn about scapolite sources, origin, gemmological properties and value. Read about the metaphysical crystal powers of scapolite ...
Scapolite is not well known, but makes an attractive gemstone. The cat's eye variety is rare and valuable.
Selenite Gemstones - Massive Crystals and Crystalline G...
Selenite is a transparent and colorless form of crystalline gypsum. Some extraordinarily large crystals have been found in Mexico
Turchese semi prezioso
Semi precious gems including turquoise have been mined, cut, worn and treasured by cultures all over the world for centuries
Informazioni sulla pietra preziosa di serafinite
Learn about seraphinite; history and origin, how to identify seraphinite, gemmological properties, related gems, seraphinite mythology, jewellery ideas and how to...
Informazioni sulla pietra preziosa serpentina
Learn about serpentine; history and origin, how to identify serpentine, gemmological properties, related gems, serpentine mythology, jewellery ideas and how to ca...
Informazioni sulla pietra preziosa di sillimanite
Sillimanite is an extremely rare collector's gem and polymorph of kyanite and andalusite, which is more often seen as cat's eye sillimanite than as faceted sillim...
Sillimanite is an aluminum silicate, related to both andalusite and kyanite. Cat's eye specimens make lovely rings.
Informazioni sulla pietra preziosa Smithsonite
Learn about smithsonite; history and origin, how to identify smithsonite, gemmological properties, related gems, smithsonite mythology, jewellery ideas and how to...
Pietre preziose Smithsonite
Smithsonite is one of two zinc-containing minerals discovered by the British mineralogist James Smithson. The other is hemimorphite
Smoky Quartz and Smoky Topaz: Learn About Smoky Gems
Smoky quartz is sometimes sold under the misleading name of smoky topaz. Smoky topaz is not an official gemstone type because there is no such gemstone. Learn mor...
Smoky Quartz Information - Find out all you need to know
Rustic earthy colors define Smoky Quartz but there is so much more to discover about this stone than its beech wood to mahogany tints and legendary spiritual stre...
Informazioni sulla pietra preziosa sodalite
Sodalite Gemstone and Jewelry Information; Learn about sodalite sources, gemological properties, mythology and more. Buying, cleaning and caring for Sodalite gems...
Gemme Spectrolite Labradorite
Spectrolite is a rare variety of labradorite with an iridescence that displays a full spectrum of colors
Spessartite Garnet Information - Deep orange of autumna...
This intense yellow-orange to red-orange member of the garnet family captures the beauty of the trees in the countryside during the fall season to perfection.
La sfalerite e il suo fuoco
Sphalerite has fire or dispersion greater than diamond, but gem-quality specimens are rare.
Informazioni sulla pietra preziosa di sfalerite
Learn about sphalerite; history and origin, how to identify sphalerite, gemmological properties, related gems, sphalerite mythology, jewellery ideas and how to ca...
Sphene is one of very few gemstones with an adamantine or diamond-like luster. Sphene's dispersion or fire even exceeds diamond.
Informazioni sulla pietra preziosa sfene
Sphene Gemstone Information:, Brilliant yellowish to golden green sphene exhibits high luster and intensive fire. Learn about Sphene gems and jewelry at GemSelect.
Spinel Gemstone Information - An often overlooked Beauty
A gemstone which graces the Crown Jewels of Kings and Queens across Europe and Asia, should be as famous as rubies and sapphires. Discover an unsung stunner here.
Spudomene Information - An attractive gemstone with man...
Spudomene is not the most marketable name in the gemstone world and perhaps this is why the pink variety prefers the name Kunzite and the green is known as Hiddenite
Spudomene Species - From industrial use to the jewelry ...
Spudomene is a major source of the lithium found in batteries around the world but the pink gemstone Kunzite is a spudomene and so is the green Hiddenite
Star Garnet Information - Take a look at this magical g...
The rutile inclusions within this garnet have to line up just right in order to create the 4 or 6 rayed stars that display so wondrously on this reddish purple st...
Star sapphire and star ruby are examples of gems that exhibit asterism or the star effect. Learn why some gemstones exhbit this rare phenomenon.
Star Moonstone Information - All about this captivating...
Many elements have to come together to create the gleam and the rays on this stunning gemstone - the right geology, the correct minerals and ideal inclusions.
Informazioni sulla pietra preziosa stella rubino
All about Star Ruby, a ruby which displays asterism, a six-rayed star that shimmers over the surface of the stone when it is moved.
Informazioni sulla pietra preziosa Star Sapphire
All about Star Sapphire, a sapphire which contains unusual tiny needle-like inclusions. Aligned needles that intersect each other at varying angles produce a phen...
Quartz with red inclusions of iron oxide is rare, and is often sold under the name strawberry quartz or red fire quartz.
Strawberry Quartz Info - As sunny and cheery as the fru...
Gemstones with unique inclusions are doubly rare and ones as beautiful as Strawberry Quartz are rarer still. Discover more about this reddish pink crystal here.
Informazioni sulla pietra preziosa Sugilite
Learn about sugilite; history and origin, how to identify sugilite, gemmological properties, related gems, sugilite mythology, jewellery ideas and how to care for...
Informazioni sulla pietra preziosa della pietra del sole
Learn about sunstone history and origin, how to identify sunstone, gemological properties, related gems, sunstone mythology, jewelry ideas and how to care for sun...
Sunstone: History of Sunstone, Feldspar Gemstone
Sunstone, or aventurine feldspar, is a unique gemstone sought-after for its spangled appearance caused by hematite inclusions. Learn about popular sunstone gems a...
Tanzanite Information - Africa's wonder risen from the ...
This vivid purple blue sensation was born in the fires that help create Africa's dramatic landscape. Learn how it rose from the embers to conquer the world of gems.
Tanzanite Prices - Limited supplies of this stunning stone
This vivid blue gemstone is a recent discovery and has taken the gem world by storm. How has supply, marketing and legend affected the price? Read on.
Informazioni sulle pietre preziose Tashmarine Diopside
Tashmarine is the interesting trade name for a rare green diopside gemstone colored by iron. It is one the most important gemstone discoveries of the 21st century.
Il mistero dell'andesina-labradorite
An attractive red feldspar called andesine has attracted a lot of attention in the gems world. What is really known about andesine?
The Secret of Spinel Gemstones
Spinel is a gemstone that is not well known in the commercial jewelery world, but one which has become a great favorite with gem dealers and gem collectors. Learn...
Tiger's Eye Gemstone Information
Tiger's Eye Gemstone Information: Tiger's eye is an opaque, chatoyant quartz, closely related to hawk's eye and pietersite. Learn about tiger's eye quartz gems an...
Topaz Gemstone Information – Take a look beyond the blue
Although Topaz is mostly associated with blue these days it actually comes in a wide range of attractive colors with the sunset orange variety, Imperial Topaz, th...
Tourmaline Information - The most colorful gem on Earth
Tourmaline is a gemstone full of energy, color and life. A versatile gem that can be adapted for any occasion, colorful and fun or sophisticated and refined, get ...
Tourmaline Varieties - Find out more about this varied ...
Tourmaline are nature's most diverse gemstones with a dazzling display of colors and a fascinating array of chemical compositions which create this rainbow.
Informazioni sulla pietra preziosa del granato tsavorite
Tsavorite Garnet Gemstone Information: Learn about green grossular Tsavorite garnet, found in only place in the world; Fine tsavorite gems and Jewelry: GemSelect
Informazioni sulla pietra preziosa turchese
Turquoise is one of the most popular green blue jewelry gemstones today. Natural turquoise is rare, but still affordable and highly sought-after for silver jewelr...
Andalusite has a such distinctive combination of colors and such pronounced pleochroism that it is rarely mistaken for any other gem.
Informazioni sulla pietra preziosa variscite
Learn about variscite; history and origin, how to identify variscite, gemmological properties, related gems, variscite mythology, jewellery ideas and how to care ...
Pietre preziose in variscite
Variscite is a green phosphate mineral that is used as a gemstone and for carvings. Notable deposits are found in Utah
Informazioni sulla pietra preziosa verdite
Verdite is a translucent to opaque collector's gem, typically light to dark green in color. As a member of the mica group, it is closely related to fuchsite.
Cos'è il granato hessonite?
Hessonite belongs to the grossularite garnet group, and is typically a vivid orange-brown.
What's Special about Spessartite?
Spessartite is no ordinary garnet. With its striking mandarin orange color and its high refractive index, it is one of the finest gems in today's market.
World of Quartz – Much more than Amethyst and Citrine
Tiger's Eye, Onyx, Jasper, names to fire your imagination. Discover the wide world of quartz in this article which reveals the colorful characters that live there.
Zircon Information - A gemstone as old as the earth itself
An underrated gemstone, the zircon has an almost unmatched brilliance and incredible 'sparkle' due to its high refractive index. Double the refraction means doub...
Zircone - Pietre preziose eccellenti
Zircon is an important jewelry stone, recognized for its exceptional brilliance and fire.
Pietre di Zoisite
Zoisite was first discovered in Austria in 1805. Three gemstone varieties are known: tanzanite, thulite and anyolite (or ruby-zoisite).
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Note: 1ct = 0.2g