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Tsavorite

Jewelry  Troy weight  Tsavorite garnet
04/19/2014

Tsavorite Garnet
Tsavorite, or transparent, green grossular garnet, was discovered in Kenya in the 1960's and given its trade name by Tiffany marketers based on the proximity of Tsavo National Park to the mine sites.


Tsavorite
Tsavorite, also known by its European name "tsavolite," is an extremely rare variety of grossularite, that was first discovered near Komolo, in the Merelani Hills, approximately 50km southeast of Arusha, Tanzania.

Tsavorite Jewelry Care & Handling
Tsavorite is a relatively hard gem (7 to 7.5 on the Mohs scale) and takes well to faceting — which enhances the brilliance of this highly refractive stone.

Tsavorite Garnet
The shining green tsavorite is a young gemstone with a very long geological history. Its home is the East-African bushland along the border between Kenya and Tanzania.

Tsavorite garnet
Gemology
Myths
Sources
Choosing tips
Where to buy
Tsavorite garnet is a rare gemstone. Most pieces are below two carats and pieces over three carats demand high prices.

Tsavorite by Peter Bancroft
Lualenyi Mine, Voi, Kenya
Editor's Note: We are pleased to reprint this selection from Peter Bancroft's classic book, Gem and Crystal Treasures (1984) Western Enterprises/Mineralogical Record, Fallbrook, CA, 488 pp.

TSAVORITE
Overview: Tsavorite is the name given to the rich green variety of grossular garnet.TsaVorite is probably the King of Green Gemstones.The gem was first discovered in Tanzania in 1967 by Campbell Bridges.

Tsavorite Garnet
Calibrated Tsavorite Garnet
Specify size, shape and quality when ordering. Prices are subject to change without notice. Actual carat weight may vary from the average carat weight listed.

Tsavorite is another of the world's rarest gems with only one source yet discovered - here in East Africa. Gemologically it is superior to Emerald on all counts, being harder, brighter and a more pure green.

Tsavorite is considered as a component of the grossularite kind of garnet.
The term of this splendid, glowing green stone was originated from the Tsavo National Park found in Kenya where it was first discovered, during the early 1970’s.

TSAVORITE
Tsavorite is a rare, deep green variety of grossular garnet, a type of garnet, calcium-aluminum silicate. The emerald green color comes from vanadium and chromium.

Tsavorite information
Natural Gold Nugget Photos: Big Nuggets, Crystal Gold
Turquoise information ...

Tsavorite
Tsavorite is a rare and beautiful newcomer to the gemstone world. It is a green variety of grossular garnet. Compared to an emerald, tsavorite is harder, more durable, more brilliant when faceted, and much rarer.

Tsavorite: Green garnet, more durable and vibrant than emerald, yet less costly. Also appears as rarer demantoid garnet which is slightly softer with more brilliance. Composition: calcium aluminum silicate; hardness: 7.

Tsavorite: A Transparent green garnet of the grossular family of garnets found at Tsavo, Kenya. Tsavorite is not the only green garnet, see also Uvarovite.

tsavorite
A transparent, emerald green variety of garnet.
turquoise ...

Tsavorite is a rare, deep green variety of grossular garnet discovered in 1967. It is one of the newest of the precious gemstones. The emerald green color comes from vanadium and chromium.

Tsavorite: A green garnet discovered in the late 1960s named after the Tsavo region of Africa. Its colour may resemble a sunlit meadow or the finest emerald. The increasing scarcity of fine emerald has made this new find quite a treasure.

Tsavorite Garnet
avorite is a gemstone within the Garnet family. It exhibits a green to emerald green color.
On Mohs' scale of hardness, tsavorite is 7-7.5. It has a vitreous luster and sources
include Kenya and Tanzania.

Tsavorite
Green variety of garnet . Names after Tsavo National Park. 7-7.5
Turquoise ...

Tsavorite
Can be considered a "new" gemstone since it was unknown before its discovery in Kenya in the 1960s. It is a member of the garnet family group in which trace amounts of vanadium and chromium provide the green color.

Tsavorite (pronounced with a silent T) is a vivid forest green Garnet gemstone unlike any green gemstone you have seen. Tsavorite is mined in the same areas of Tanzania in which Tanzanite, another rare gemstone, is found.

Tsavorite is typically found in agglomerations known as "potatoes," such as the example shown here.
Uvarovite ...

Tsavorite isotropic
Tourmaline v. strongly pleochroic
Peridot R.I.=1.65, Emerald R.I. = 1.57-1.58, colors usually quite different (more yellow in peridot)
PINK STONES: Tourmaline vs. Spinel vs. Sapphire vs. Morganite ...

Tsavorite
A transparent, emerald green variety of garnet.
Turquoise
Semi-precious stone which is greenish-blue in color.

Tsavorite
Belongs to the garnet family. Its refractive index is high. Available in colors of light green, intense blue-green and deep forest green.
Tungsten ...

Tsavorite
A vibrant green type of grossularite; which is a form of garnet. The gemstone was discovered in 1975 in Kenya.
Tungsten ...

(Tsavorite Garnet. Photo by ICA/Bart Curren)
The most expensive and popular of the grossular garnets is tsavorite which was named after Tsavo National Park on the border of Kenya and Tanzania, where it is mined.

Like tsavorite, top chrome greens are rich, bright, and clean green. It is very difficult for novices or experts to tell the difference between fine chromes and tsavorites. Some fine chromes tend to possess a greenish/yellow cast.

Green: Tsavorite - Yellow, Brown and Orange: Hessonite
Crystal Structure
Cubic ...

Tsavorite ...grossular...see garnet
Colors: green
Occurrence: Kenya
Crystal or stone size: over 1 ct. rare
Comments: collector gem being found more and more in the trade.
Tungstite... tungsten oxide + water... WO3.H2O ...

While the ruby and tsavorite deposits of Kenya are well known, sapphires are a relatively new and unexplored resource.

aka Demantoid, Grossularite, Tsavorite
The best known variety of green garnet is grossularite, which naturally occurs in green, yellow and brown. In the 20th century, a large amount of grossularite was found in Mali.

And any overview of garnets would not be complete without praise for the two beautiful green garnets, demantoid and tsavorite. Both are rare and brilliant.

The six most common species of Garnet are Pyrope, Almadine, Spessartite, Grossular, Hessonite, Tsavorite, Uvarovite and Andradite.

Several gem species and varieties discussed in Part II of this book are fairly recent discoveries: tsavorite garnet, tanzanite, and malaya garnet were completely unknown just fifty years ago.

Hessonite is the variety name for a fine orange, cinnamon brown, or pinkish variety of grossularite, while tsavorite is the trade name for fine dark green grossularite.

But tsavorite and demantoid are quite rare and can cost several thousand dollars per carat depending on size and quality. Bright colors usually command higher prices than gems with light or dark hues.

South Africa, Tanzania and Kenya have been the primary sources of the clear green tsavorite garnet. Discovered in 1968, in the Tsavo National Park in Kenya, Tsavorite garnets were promoted and used extensively by Tiffany.

Tsavorite is the name given to dark green grossularite. Uvarovite and demantoid are also green varieties. Pyrope garnets are purplish red, orangy red, crimson, or dark red.

It is also paired with other gemstones like sapphires, diamonds and Tsavorite. It can be set into prong or bezel or bead setting. Buyer should ensure that the setting is done well while buying this beautiful asset.

Grossular: The most colorful garnet type, occurring in yellow, brown, orange and a gorgeous, vivid green variety called tsavorite, which rivals demantoid in beauty and value.

These include gemstones like tanzanite, imperial topaz, aquamarine, tsavorite and tourmaline. These gemstones are usually available in standardized sizes but one should look for fine larger single stone to be able to experience the lustrous color.

Once again, green is a very important color, from electrically charged peridot and tsavorite to cooler emerald and chrome tourmaline.

Named varieties of Garnet include Andradite, Tsavorite, Grossularite, Essonite, Pyrope, Almandine, Spessartite, Melanite, Allochroite, Ouvarovite, Demantoid, and Rhodolite.
Gaspetite ...

Green: Emerald, Garnet (Tsavorite), Tourmaline, Peridot, Green Beryl, Sapphire, Andalusite, Jade (Jadeite and Nephrite) ...

The versatile garnet comes in a virtual rainbow of colors, from the deep red Bohemian Garnet to the vibrant greens of the Russian demantoid and African tsavorite.

Chrome Tourmaline is colored by chromium resulting in a beautiful green stone that is often confused with emerald or the tsavorite garnet. Indicolite is a dark blueish black stone.

Garnet Stones are available in varieties named Grossularite, Pyrope, Almandine, Rhodalite, Andradite, Essonite, Tsavorite, Spessartite, Melanite, Allochroite, Ouvarovite and Demantoid.

One of the most sought after varieties of gem garnet is the fine green grossular garnet from Kenya and Tanzania called tsavorite. This garnet was discovered in the 1960s in the Tsavo area of Kenya, from which the gem takes its name.

Today the most prized member of the garnet family is the green grossular garnet called "Tsavorite" from near the Tsavo National park in Kenya. This green garnet gets it's color from chromium just like emerald.

Green garnets are generally relatively inexpensive, with the exception of tsavorite garnets and demantoids, which rival emeralds for color and clarity and can cost well over $1000 per carat.

This species includes several significant gem varieties such as hessonite, tsavorite, leuco garnet, and hydrogrossular. On Mohs' scale of hardness, it is 3.57- 3.73. For color and sources, see individual gemstones.

Spessartites are generally cut similar to other colored stones, with ovals, cushions, trillions and emerald cuts being most common.
In the market, tsavorites are found in a variety of shapes and cutting styles. Ovals and cushions are the most common ...

- 'Queen of Kilimanjaro' is another famous large tanzanite, which weighs 242 carats. It is set in a tiara with 803 brilliant cut tsavorite garnet and 913 brilliant cut diamond accents.

Uvarovite: An emerald green garnet composed of chromium lime. Named from the Russian Count Uvaroff. Uvarovite is almost never used as a gemstone. Distinguishing Uvarovite and Tsavorite is difficult, but an experienced gemologist can do it.

Spessartites are orange and are often known as mandarin garnets. Among the varieties of green garnets are grossularite, demantoid, and tsavorite, which can be found in Mali, Tanzania, Russia, and Namibia.

The word "garnet" is typically associated with a red stone, but this is only true for the two most common members of the garnet group: the "carbuncle stones" pyrope and almandine. Like their relatives (e.g. green tsavorite and brown to yellow ...

late 18th and 19th Centuries and examples of these stones cut small and en cabochon, and clustered together on brooches, hair pins and rings can be found in many antique shops and markets. Garnet, however, has many faces and can be green (Tsavorite ...

Transvaal "jade" is a type of green to gray grossular garnet from South Africa. Pink grossular garnets varieties include landerite, rosolite, andXalostocite. Tsavorite is an emerald-green grossular garnet. Grossular garnet has a hardness of 6-7.

See also: See also: Stone, Color, Emerald, Garnet, Gemstone

Jewelry  Troy weight  Tsavorite garnet
04/19/2014

 
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