Demantoid Garnet Gemstone Information
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About Demantoid Garnet - History and Introduction
Demantoid garnet is a brilliant green variety of andradite garnet, colored by chromium and ferric iron. It is considered to be the rarest and most valuable member of the garnet group of minerals. Demantoid has an exceptionally high refractive index making it not only the most brilliant garnet but also more brilliant than both ruby and sapphire. Demantoid garnet also has exceptional fire and boasts the highest dispersion rating of any jewelry gemstone available today, even exceeding that of fine diamond. Like most green garnets, demantoid is typically found only in small sizes. Specimens over one carat are rare and specimens over 2 carats are very rare indeed. In fact, demantoid garnet is traditionally considered to be one of the rarest colored gemstones today.
Demantoid garnet was first discovered in the Ural Mountains of Russia, and although garnets have been known for ages, demantoid wasn't discovered until 1853. Today, Russian demantoid is considered extremely rare and very valuable. Russian demantoid is highly prized for its distinctive golden 'horsetail' inclusions, owed to the presence of byssolite or chrysotile asbestos; but not all Russian demantoid exhibits golden thread-like inclusions. Other origins, may also produce similar inclusions but rather than being caused by traces of asbestos, they are regarded as characteristics of serpentinite geographic origins.
Please refer to our Gemstone Glossary for details of gemology-related terms.
Demantoid Garnet: Varieties or Similar Gemstones:Back to Top
The garnet group of gemstones is one of the most important in the gem trade. Garnet is best known in its classic red form, but garnet can occur in various other colors including green, blue, brown, pink and purple. Since garnet deposits have formed in locations scattered throughout the world, there are a number of other gemstones that can be easily mistaken for garnet. Some of the most commonly confused gems include chrysoberyl, alexandrite, tourmaline, spinel and sapphire.
Although there are only six mineral species of garnet, there are several distinct gemstone forms. This is because garnet very commonly forms with more than one mineral species. In fact, garnet is very rarely in pure form.
Demantoid Garnet Gemstone Mythology, Metaphysical and Alternative HealingBack to Top
The name 'garnet' comes from the Latin word 'granatus', which means 'seed-like' - in reference to pomegranate fruit seeds. Although the distinction of the garnet varieties is relatively new, garnet stones in general have been widely known for thousands of years. The Greeks believed garnet protected their children from drowning and it was thought to be a potent antidote to poison. The Koran notes garnet as a stone that illuminates the fourth heaven. Hebrew and Christian scriptures included garnet as one of the twelve stones embedded on Aaron's breastplate, and it was also reported that Noah used a lantern fabricated from garnet to safely steer his ark through the darkness of night.
Garnet is a traveler's stone. Many courageous discoverers and adventurers were known for wearing garnet stones for protection. Garnets were considered to be powerful talismans, capable of illuminating the night and dispelling evil spirits. Garnet was often used to lift depression and to rid people of bad dreams. Physically, demantoid garnet is thought to help alleviate symptoms of arthritis, varicose veins, backache, liver disorders and prevent hemorrhages. Garnet is the stone for Aquarius and the official birthstone for January. In addition, it is the 2nd marriage anniversary stone. Garnet is also considered the planetary stone for Mars, Mercury and Pluto.
Demantoid Garnet Gemstone and Jewelry Design IdeasBack to Top
Demantoid garnet is used in all types of jewelry and suitable for any design with regard to hardness and durability. It has excellent hardness, brilliance and fire which makes it ideal for use in exquisite ring designs. You may also find demantoid garnet used in necklaces, bracelets, brooches, pins and pendants. Demantoid is typically very expensive and extremely rare, so it is not a garnet that will likely be found on the shelf at your local retail jewelry store.
Anniversary and eternity bands often utilize demantoid gemstones since garnet is the 2nd year wedding anniversary gemstone. Demantoid may also be found in many traditional birthstone jewelry designs. Demantoid garnet is also an excellent alternative for expensive green emerald. Since demantoid is typically untreated, it is commonly worn in planetary and astrological jewelry.
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.
Demantoid Garnet Gemstone and Jewelry Care and CleaningBack to Top
Demantoid garnet can be cleaned using warm water and a mild soap or detergent . You can wipe down your stones with a plain soft cloth or brush. After wiping, be sure to rinse your gems and jewelry well to ensure all soapy residue is removed. Avoid extreme heat, as extreme temperature fluctuations can cause fracturing. Ultrasonic cleaners are not considered safe for demantoid garnet. Steamers should also be avoided, as well as any harsh household chemicals and cleaners, including bleach or hydrofluoric acid, as chemicals can cause corrosion.
Although demantoid garnet is quite durable, it is still recommended that any jewelry is removed before engaging in vigorous physical activities, such as exercise or sports. When removing jewelry, do not pull from the stone as this can weaken prongs, eventually leading to a lost stone. When storing demantoid garnet gemstones, wrap them in a soft cloth or place them inside a fabric-lined jewelry box.
- First Published: November-29-2013
- Last Updated: November-20-2019
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