search
  • Sign In
    Sign Up
  • English speaking customer support only

    Toll Free - USA & Canada only:
    1-800-464-1640

    International:
    +66-39303404

  • Change Language
  • USD

Fluorite Gemstone Information

Fluorite Gemstones from GemSelect - Large Image
Buy Fluorite Gemstones

About Fluorite - History and Introduction

Fluorite is considered to be one of most popular minerals in the world among gem and mineral collectors, second only to quartz. It is often referred to as 'the most colorful mineral in the world' owing to its variety of brilliant colors. Fluorite was first described in 1530 and was originally referred to as 'fluorspar'. The mineral was strongly noted for its effectiveness as a flux for aluminum and steel processing. Today, the term 'fluorspar' is primarily used for the industrial and chemical form of fluorite, while 'fluorite' is the term used in reference to the gem and mineral.

Fluorite Fluorescence
In 1852, the phenomenon of 'fluorescence' was named after fluorite, since it was one of the first fluorescent minerals studied. The element fluorine was also named after fluorite. Fluorine is an essential element in the chemical ion of fluoride. Fluorite is frequently fluorescent under ultraviolet UV light. The fluorescence is thought to be due to impurities of yttrium or other types of organic matter within the crystal lattice. The color of visible light emitted when a sample of fluorite is fluorescing appears to be highly dependent on where the specimen was collected. Fluorescent colors of fluorite are extremely variable, but the typical color is blue; other fluorescent colors include yellow, green, red, white and purple. Some specimens have the added effect of simultaneously exhibiting different colors under long and short wave UV light.

Fluorite Crystal Habits
Fluorite has several different crystal habits that always produce well-formed clean crystals. The cube is the most recognized habit of fluorite, followed secondly by the octahedron. The octahedral crystal is believed to form at higher temperatures than the cube. Fluorite has perfect octahedral cleavage which means that when cleaved, it can produce a perfect octahedron or diamond shape. Cleaved octahedrons are popular in rock shops all over the world, while natural uncleaved octahedrons are much harder to find.

Faceted Fluorite Gemstone

Identifying Fluorite

Back to Top

Due to the many color variations of fluorite, it can resemble a variety of gemstones; however, it can be easily distinguished by its relatively low level of hardness. Some possibilities for confusion include calcite, but calcite is slightly softer and has a different crystal form. Quartz is much harder and lacks the cleavage of fluorite, while apatite is slightly harder and has a different crystal form. Another distinguishing characteristic of fluorite is its property of thermoluminescence; the ability to glow when heated. One variety of fluorite known as 'chlorophane' demonstrates this well and can display thermoluminescence even when held in the hand. The thermoluminescence is green to blue-green.

Fluorite Origin and Gemstone Sources

Back to Top

Fluorite deposits are found in many locations around the world. Some of the most significant finds are located in Argentina, Austria, Canada, China, England, France, Germany, Mexico, Morocco, Myanmar (Burma), Namibia, Russia, Spain, Switzerland and the United States.

The unique variety of 'chlorophane fluorite' is found in very limited quantities at Amelia Court House, Virginia; Franklin, New Jersey; the Bluebird Mine in Arizona, USA; Gilgit, Pakistan; Mont Saint-Hilaire, Quebec, Canada and at Nerchinsk in the Ural Mountains of Russia.

A purple-blue and white banded variety of fluorite known as 'Blue John' is mined from Castleton in Derbyshire, England. Only a very small quantity of Blue John is mined each year for gemstone and ornamental use.

China has recently become a source for a type of fluorite that has similar color and banding to 'Blue John' fluorite.

Buying Fluorite and Determining Fluorite Value

Back to Top

Fluorite Color

Fluorite occurs in a range of colors from colorless to black. The hallmark fluorite color is purple, while other popular colors include blue, green and yellow. Rarer colors include colorless, pink, brown, black and reddish-orange. Intermediate pastels between the previously mentioned colors are also possible. Most fluorite is a single color, but a significant percentage of fluorite exhibits multiple colors arranged in bands or zones.

Fluorite Clarity and Luster

Fluorite has an attractive vitreous luster and gem-quality specimens should be free from inclusions visible to the eye. Gem grade fluorite typically occurs with excellent transparency, while lower-grade, industrial and commercial-use fluorite is often translucent.

Fluorite Cut and Shape

Most fluorite gemstones are cut from deeply colored stones, but they can also be cut from the less intensely colored materials. Fluorite is typically faceted as a gemstone only for collectors or display purposes. The most common shapes are traditional ovals, rounds and cushions, but fancier shapes can be found. Multicolored and banded fluorite is often shaped and polished as cabochons. Many collected fluorite stones are unworked and are traded in crystal form. Fluorite has a tendency to chip, and owing to its softness, gemstones must be cut very carefully.

Fluorite Treatment

Fluorite is typically unenhanced. However, some materials may have been enhanced through irradiation gamma rays to create interesting neon colors. Synthesized fluorite is also available in a variety of colors.

Fluorite Gemological Properties:

Back to Top
Chemical Formula: CaF2 - Calcium fluoride
Crystal Structure: (Cubic) Cubes, octahedra
Color: Colorless and all colors
Hardness: 4 on the Mohs scale
Refractive Index: 1.434
Density: 3.00 to 3.25
Cleavage: Perfect
Transparency: Transparent to translucent
Double Refraction or Birefringence: None
Luster: Vitreous
Fluorescence: Strong; blue-violet

Please refer to our Gemstone Glossary for details of gemology-related terms.

Fluorite: Varieties of Fluorite and Similar Gemstones

Back to Top
Apatite Gemstones
Natural Apatite

There are several unofficial trade names for fluorite specimens that may exhibit certain colors or patterns, or may have formed in very specific geological regions or conditions.

Some of the more popular and well-known varieties of fluorite include:

Antozonite - Fluorite that when fractured or cleaved, gives off a peculiar odor.

Blue John - A banded purple and white variety of fluorite from Derbyshire, England.

Chlorophane - A thermoluminescent variety of fluorite, which can emit a bright green to blue-green light when heated.

Yttrocerite - Fluorite in which cerium and yttrium elements partially replace the calcium in the chemical structure.

Yttrofluorite - Fluorite in which yttrium elements partially replace calcium in the chemical structure.

Other Similar Minerals

Apatite, calcite, pyrite, halite and quartz

Fluorite Mythology, Metaphysical and Crystal Healing Properties

Back to Top

As a lesser-known gemstone, fluorite hasn't gained much fame or legend, other than being known as the most colorful mineral in the world. The word 'fluorite', derived from the Latin verb 'to flow', refers to fluorite's use as a flux in steel and aluminum processing. It was originally named 'fluorspar' by miners and is still called fluorspar to this day. Fluorite is also used as a source of fluorine for fluorinated water. Many people believe fluorite has a calming effect on the body. During the eighteenth century it was ground into powder and mixed with water to treat kidney disease. Ancient Romans believed that drinking alcoholic beverages out of vessels carved from fluorite would help prevent drunkenness, which is similar to the beliefs attached to purple amethyst.

Disclaimer: Metaphysical and Alternative Crystal Healing Powers and Properties are not to be taken as confirmed advice. Traditional, Ceremonial and Mythological Gemstone Lore is collected from various resources and is not the sole opinion of SETT Co., Ltd. This information is not to replace the advice of your doctor. Should you have any medical conditions, please see a licensed medical practitioner. GemSelect does not guarantee any claims or statements of healing or astrological birthstone powers and cannot be held liable under any circumstances.

Fluorite Gemstone and Jewelry Design Ideas

Back to Top

Due to fluorite's very low hardness and perfect cleavage, it is not used for mainstream gemstone jewelry, and it is generally cut only for gemstone and mineral collectors. However, despite being a softer collector's stone, fluorite is still quite suitable for protected jewelry such as pendants, brooches or earrings. Multicolor banded beads of fluorite are sometimes used in bracelets, but care should always be taken when wearing fluorite.

Fairly large fluorite gemstones can be found at very affordable prices. Typically, banded and multicolored fluorite is shaped and polished as cabochons. The distinct purple-blue and white banded 'Blue John' variety of fluorite is often used for ornamental carvings and was once popular for the making of goblets.

Note: Buy colored gemstones by size and not by carat weight. Colored stones vary in size-to-weight ratio. Some stones are larger and others are smaller than diamond by weight in comparison.

Fluorite Gemstone Jewelry Care and Cleaning Back to Top

How to clean your gemstonesFluorite gemstones are rather fragile compared to most gemstones and since they are considerably softer than quartz, simply wiping off dust can eventually cause them to lose polish and develop surface scratches. Caring for fluorite stones is comparable to that of precious opal. Avoid wearing fluorite jewelry when engaging in vigorous physical activity, such as exercise or sports, or household chores. When cleaning fluorite, use soapy water and a soft cloth. Be sure to rinse well to remove soapy residue.

As with most colored stones, avoid ultrasonic cleaners and steamers. Avoid the use of bleach and other harsh chemicals. When storing fluorite, wrap it in a soft cloth, or place it into a fabric-lined box. Always store fluorite separately from other types of gemstone and gemstone jewelry.

  • First Published: September-29-2006
  • Last Updated: January-17-2019
  • © 2005-2019 GemSelect.com all rights reserved.
    Reproduction (text or graphics) without the express written consent of GemSelect.com (SETT Company Ltd.) is strictly prohibited.
Popular Gemstones
  • Shop Sapphire Gemstones Sapphire
  • Shop Emerald Gemstones Emerald
  • Shop Ruby Gemstones Ruby
  • Shop Aquamarine Gemstones Aquamarine
  • Shop Zircon Gemstones Zircon
  • Shop Opal Gemstones Opal
  • Shop Topaz Gemstones Topaz
  • Shop Tourmaline Gemstones Tourmaline
  • Shop Garnet Gemstones Garnet
  • Shop Amethyst Gemstones Amethyst
  • Shop Citrine Gemstones Citrine
  • Shop Tanzanite Gemstones Tanzanite
All Gemstones (143)
A B C D E F G H I J K L M N O P Q R S T V Z
  • Shop Actinolite Cat's Eye Gemstones Actinolite Cat's Eye
  • Shop Agate Gemstones Agate
  • Shop Agate Geode Gemstones Agate Geode
  • Shop Almandine Garnet Gemstones Almandine Garnet
  • Shop Amazonite Gemstones Amazonite
  • Shop Amethyst Gemstones Amethyst
  • Shop Amethyst Geode Gemstones Amethyst Geode
  • Shop Ametrine Gemstones Ametrine
  • Shop Ammolite Gemstones Ammolite
  • Shop Andalusite Gemstones Andalusite
  • Shop Andesine Labradorite Gemstones Andesine Labradorite
  • Shop Apatite Gemstones Apatite
  • Shop Aquamarine Gemstones Aquamarine
  • Shop Aventurine Gemstones Aventurine
  • Shop Beryl Gemstones Beryl
  • Shop Black Opal Gemstones Black Opal
  • Shop Bloodstone Gemstones Bloodstone
  • Shop Boulder Opal Gemstones Boulder Opal
  • Shop Calcite Gemstones Calcite
  • Shop Carnelian Gemstones Carnelian
  • Shop Cat's Eye Apatite Gemstones Cat's Eye Apatite
  • Shop Cat's Eye Aquamarine Gemstones Cat's Eye Aquamarine
  • Shop Cat's Eye Augite Gemstones Cat's Eye Augite
  • Shop Cat's Eye Gemstones Gemstones Cat's Eye Gemstones
  • Shop Cat's Eye Moonstone Gemstones Cat's Eye Moonstone
  • Shop Cat's Eye Opal Gemstones Cat's Eye Opal
  • Shop Cat's Eye Scapolite Gemstones Cat's Eye Scapolite
  • Shop Chalcedony Gemstones Chalcedony
  • Shop Charoite Gemstones Charoite
  • Shop Chocolate Opal Gemstones Chocolate Opal
  • Shop Chrome Diopside Gemstones Chrome Diopside
  • Shop Chrome Tourmaline Gemstones Chrome Tourmaline
  • Shop Chrysoberyl Gemstones Chrysoberyl
  • Shop Chrysocolla Gemstones Chrysocolla
  • Shop Chrysoprase Gemstones Chrysoprase
  • Shop Citrine Gemstones Citrine
  • Shop Citrine Geode Gemstones Citrine Geode
  • Shop Color-Change Diaspore Gemstones Color-Change Diaspore
  • Shop Color-Change Fluorite Gemstones Color-Change Fluorite
  • Shop Color-Change Garnet Gemstones Color-Change Garnet
  • Shop Color-Change Sapphire Gemstones Color-Change Sapphire
  • Shop Coral Gemstones Coral
  • Shop Demantoid Garnet Gemstones Demantoid Garnet
  • Shop Dendritic Agate Gemstones Dendritic Agate
  • Shop Diamond Gemstones Diamond
  • Shop Emerald Gemstones Emerald
  • Shop Enstatite Gemstones Enstatite
  • Shop Fire Agate Gemstones Fire Agate
  • Shop Fire Opal Gemstones Fire Opal
  • Shop Fluorite Gemstones Fluorite
  • Shop Fossil Coral Gemstones Fossil Coral
  • Shop Garnet Gemstones Garnet
  • Shop Golden Beryl Gemstones Golden Beryl
  • Shop Grandidierite Gemstones Grandidierite
  • Shop Grossularite Garnet Gemstones Grossularite Garnet
  • Shop Hawk's Eye Gemstones Hawk's Eye
  • Shop Hematite Gemstones Hematite
  • Shop Hemimorphite Druzy Gemstones Hemimorphite Druzy
  • Shop Hessonite Garnet Gemstones Hessonite Garnet
  • Shop Hiddenite Gemstones Hiddenite
  • Shop Howlite Gemstones Howlite
  • Shop Idocrase Gemstones Idocrase
  • Shop Imperial Topaz Gemstones Imperial Topaz
  • Shop Iolite Gemstones Iolite
  • Shop Jade Gemstones Gemstones Jade Gemstones
  • Shop Jadeite Gemstones Jadeite
  • Shop Jasper Gemstones Jasper
  • Shop Kornerupine Gemstones Kornerupine
  • Shop Kunzite Gemstones Kunzite
  • Shop Kyanite Gemstones Kyanite
  • Shop Labradorite Gemstones Labradorite
  • Shop Lapis Lazuli Gemstones Lapis Lazuli
  • Shop Larimar Gemstones Larimar
  • Shop Malachite Gemstones Malachite
  • Shop Malaya Garnet Gemstones Malaya Garnet
  • Shop Mali Garnet Gemstones Mali Garnet
  • Shop Maw-Sit-Sit Gemstones Maw-Sit-Sit
  • Shop Moonstone Gemstones Moonstone
  • Shop Morganite Gemstones Morganite
  • Shop Moss Opal Gemstones Moss Opal
  • Shop Mother of Pearl Gemstones Mother of Pearl
  • Shop Mystic Quartz Gemstones Mystic Quartz
  • Shop Mystic Topaz Gemstones Mystic Topaz
  • Shop Nuummite Gemstones Nuummite
  • Shop Obsidian Gemstones Obsidian
  • Shop Opal Gemstones Opal
  • Shop Opal Doublet Gemstones Opal Doublet
  • Shop Opal in Matrix Gemstones Opal in Matrix
  • Shop Pearl Gemstones Pearl
  • Shop Peridot Gemstones Peridot
  • Shop Pietersite Gemstones Pietersite
  • Shop Prehnite Gemstones Prehnite
  • Shop Pyrite Gemstones Pyrite
  • Shop Pyrope Garnet Gemstones Pyrope Garnet
  • Shop Quartz Gemstones Quartz
  • Shop Quartz Cat's Eye Gemstones Quartz Cat's Eye
  • Shop Quartz With Marcasite Gemstones Quartz With Marcasite
  • Shop Rainbow Moonstone Gemstones Rainbow Moonstone
  • Shop Rainbow Pyrite Gemstones Rainbow Pyrite
  • Shop Rhodochrosite Gemstones Rhodochrosite
  • Shop Rhodolite Garnet Gemstones Rhodolite Garnet
  • Shop Rhodonite Gemstones Rhodonite
  • Shop Rose Quartz Gemstones Rose Quartz
  • Shop Ruby Gemstones Ruby
  • Shop Ruby in Fuchsite Gemstones Ruby in Fuchsite
  • Shop Ruby-Zoisite Gemstones Ruby-Zoisite
  • Shop Rutile Quartz Gemstones Rutile Quartz
  • Shop Sapphire Gemstones Sapphire
  • Shop Scolecite Gemstones Scolecite
  • Shop Seraphinite Gemstones Seraphinite
  • Shop Serpentine Gemstones Serpentine
  • Shop Sillimanite Gemstones Sillimanite
  • Shop Sillimanite Cat's Eye Gemstones Sillimanite Cat's Eye
  • Shop Smithsonite Gemstones Smithsonite
  • Shop Smoky Quartz Gemstones Smoky Quartz
  • Shop Snowflake Obsidian Gemstones Snowflake Obsidian
  • Shop Sodalite Gemstones Sodalite
  • Shop Spectrolite Gemstones Spectrolite
  • Shop Spessartite Garnet Gemstones Spessartite Garnet
  • Shop Sphalerite Gemstones Sphalerite
  • Shop Sphene Gemstones Sphene
  • Shop Spinel Gemstones Spinel
  • Shop Star Diopside Gemstones Star Diopside
  • Shop Star Garnet Gemstones Star Garnet
  • Shop Star Gemstones Gemstones Star Gemstones
  • Shop Star Lemon Quartz Gemstones Star Lemon Quartz
  • Shop Star Moonstone Gemstones Star Moonstone
  • Shop Star Rose Quartz Gemstones Star Rose Quartz
  • Shop Star Ruby Gemstones Star Ruby
  • Shop Star Sapphire Gemstones Star Sapphire
  • Shop Star Sunstone Gemstones Star Sunstone
  • Shop Strawberry Quartz Gemstones Strawberry Quartz
  • Shop Sugilite Gemstones Sugilite
  • Shop Sunstone Gemstones Sunstone
  • Shop Tanzanite Gemstones Tanzanite
  • Shop Tiger's Eye Gemstones Tiger's Eye
  • Shop Tiger's Eye Matrix Gemstones Tiger's Eye Matrix
  • Shop Topaz Gemstones Topaz
  • Shop Tourmaline Gemstones Tourmaline
  • Shop Tsavorite Garnet Gemstones Tsavorite Garnet
  • Shop Turquoise Gemstones Turquoise
  • Shop Variscite Gemstones Variscite
  • Shop Zircon Gemstones Zircon
Main Categories
  • New Arrivals
  • Gemstone Lots
  • Calibrated Gemstones
  • Gemstone Lots - By Piece
  • Matched Pairs
  • Cabochon Gems
  • Drilled Gems, Briolettes and Beads
  • Birthstones
  • Gemstone Carvings
  • Fancy Gemstones
  • Star Gemstones
  • Unheated Sapphire
English speaking customer support only

Toll Free - USA & Canada only:
1-800-464-1640

International:
+66-39303404

Save Money
No shipping Fees for Additional Items!
$8.90 Worldwide Shipping

Update Translation
 
Current Value
New Value
GemSelect Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart