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. It is one of the most sought after and valuable types of garnet. ...
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.
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. The few mines lie in a uniquely beautiful landscape of arid grassland with bare, dry hills.
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Tsavorite (or Tsavolite) is a member of the grossularite type of garnet.
The name of this magnificent vivid green stone comes from the Tsavo National Park in Kenya where it was first found, in the beginning of the seventies.
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.
Overview: ~ is the name given to the rich green variety of grossular garnet.~ is probably the King of Green Gemstones.The gem was first discovered in Tanzania in 1967 by Campbell Bridges.
Calibrated ~ 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.
~ 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. We specialise in the top grade; deep, bright vivid greens, high clarities.
~ 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.
~ 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. ~ is similar to emerald, but is rarer and more durable; it also has a higher refractive index, 1.74.
Natural Gold Nugget Photos: Big Nuggets, Crystal Gold
Turquoise information ...
~ is a rare and beautiful newcomer to the gemstone world. It is a green variety of grossular garnet. Compared to an emerald, ~ is harder, more durable, more brilliant when faceted, and much rarer.
~: 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.
~: A Transparent green garnet of the grossular family of garnets found at Tsavo, Kenya. ~ is not the only green garnet, see also Uvarovite.
Similar to an emerald in terms of appearance and durability, this stone is a green garnet with a striking brilliance and a resilient hardness. Unlike other green gemstones, no treatment is necessary to enhance the rich color of a ~ stone.
A transparent, emerald green variety of garnet.
~ - a transparent, nearly emerald green variety of grossular garnet found in mid Africa particularly Kenya (the Tsavo National Game Preserve). It was named ~ by Tiffany & Co. in 1974. It has a hardness of 7 and a refractive index of 1.744.
~ 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. ~ is similar to emerald, but is rarer and more durable and more refractive.
avorite is a gemstone within the Garnet family. It exhibits a green to emerald green color.
On Mohs' scale of hardness, ~ is 7-7.5. It has a vitreous luster and sources
include Kenya and Tanzania. (See ~ Facts.) (Note: Sources listed in order of ...
Green variety of garnet . Names after Tsavo National Park. 7-7.5
~ (pronounced with a silent T) is a vivid forest green Garnet gemstone unlike any green gemstone you have seen. ~ is mined in the same areas of Tanzania in which Tanzanite, another rare gemstone, is found.
~ is typically found in agglomerations known as "potatoes," such as the example shown here.
~ and Hessonite are varieties of Grossular. ~s are green, while Hessonite ranges from orange and orangy red to brownish red.
Splendid Vivid Yellowish Green ~ Garnet Gemstone Trillion Cut, 2.06 carats ...
A transparent, emerald green variety of garnet.
Semi-precious stone which is greenish-blue in color.
Belongs to the garnet family. Its refractive index is high. Available in colors of light green, intense blue-green and deep forest green.
A vibrant green type of grossularite; which is a form of garnet. The gemstone was discovered in 1975 in Kenya.
(~ Garnet. Photo by ICA/Bart Curren)
The most expensive and popular of the grossular garnets is ~ which was named after Tsavo National Park on the border of Kenya and Tanzania, where it is mined. Fine ~s are an intense medium green color; a few resemble fine emeralds.
Like ~, 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 ~s. Some fine chromes tend to possess a greenish/yellow cast. Others are definitely greenish/blue.
Green: ~ - Yellow, Brown and Orange: Hessonite
~ ...grossular...see garnet
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
Color: yellow earth colors
Crystal system: orthorhombic
While the ruby and ~ deposits of Kenya are well known, sapphires are a relatively new and unexplored resource. To date, the country's sapphire wealth has not been completely inventoried and new deposits are continually being discovered in many different parts of the country.
And any overview of garnets would not be complete without praise for the two beautiful green garnets, demantoid and ~. Both are rare and brilliant. Demantoid, found in Russia's Ural mountains in the nineteenth century, is one of the most sought after prizes of estate jewelry.
The six most common species of Garnet are Pyrope, Almadine, Spessartite, Grossular, Hessonite, ~, Uvarovite and Andradite. Garnets of deep red, violet-red and black come from Arizona in America, South America, Ceylon, India, and Australia.
Several gem species and varieties discussed in Part II of this book are fairly recent discoveries: ~ 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 ~ is the trade name for fine dark green grossularite. Melanite is a black titanium bearing variety of andradite and demantoid is a rich green variety.
It is also paired with other gemstones like sapphires, diamonds and ~. 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 ~, which rivals demantoid in beauty and value. Named after the Tsavo National Park in East Africa, this garnet is almost never available over five carats.
Some Other Varieties are Andradite, Essonite, ~, Spessartite, Melanite, Allochroite, Ouvarovite and Demantoid. This stone has a long history of use as a medicine stone and was used for healing blood and lung diseases.
These include gemstones like tanzanite, imperial topaz, aquamarine, ~ 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 ~ to cooler emerald and chrome tourmaline.
Named varieties of Garnet include Andradite, ~, Grossularite, Essonite, Pyrope, Almandine, Spessartite, Melanite, Allochroite, Ouvarovite, Demantoid, and Rhodolite.
Green: Emerald, Garnet (~), Tourmaline, Peridot, Green Beryl, Sapphire, Andalusite, Jade (Jadeite and Nephrite)
Yellow and Orange: Citrine, Golden Beryl, Sapphire, Topaz, Tourmaline, Fire Opal, Diamond, Zircon, Garnet (Spessartite, Malaia, Hessonite) ...
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 ~.
Chrome Tourmaline is colored by chromium resulting in a beautiful green stone that is often confused with emerald or the ~ garnet. Indicolite is a dark blueish black stone. The Paraiba tourmaline is a bright neon-blue and Rubellite is a deep reddish purple stone.
One of the most sought after varieties of gem garnet is the fine green grossular garnet from Kenya and Tanzania called ~. This garnet was discovered in the 1960s in the Tsavo area of Kenya, from which the gem takes its name.
Garnet Stones are available in varieties named Grossularite, Pyrope, Almandine, Rhodalite, Andradite, Essonite, ~, Spessartite, Melanite, Allochroite, Ouvarovite and Demantoid.
Today the most prized member of the garnet family is the green grossular garnet called "~" from near the Tsavo National park in Kenya. This green garnet gets it's color from chromium just like emerald. It is sold as an emerald substitute and brings a quality price.
Grossular - Grossular gemstones are a species within the Garnet family. This species includes several significant gem varieties such as hessonite, ~, leuco garnet, and hydrogrossular. On Mohs' scale of hardness, it is 3.57- 3.73. For color and sources, see individual gemstones.
- 'Queen of Kilimanjaro' is another famous large tanzanite, which weighs 242 carats. It is set in a tiara with 803 brilliant cut ~ 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 ~ is difficult, but an experienced gemologist can do it.
Among garnets of other colours is spessartite, named after a region in Germany where it was discovered. Spessartites are orange and are often known as mandarin garnets. Among the varieties of green garnets are grossularite, demantoid, and ~, which can be found in Mali, Tanzania, Russia, ...
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 ~ and brown to yellow hessonite), ...
red of Bohemian Garnet was hugely popular in the 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 (~ ...
Transvaal "jade" is a type of green to gray grossular garnet from South Africa. Pink grossular garnets varieties include landerite, rosolite, andXalostocite. ~ is an emerald-green grossular garnet. Grossular garnet has a hardness of 6-7.5 and a specific gravity of 3.6.
There are a number of trade and variety names for garnet, most of these names are for particular colors of a specie.
Hessonite is the variety name for a fine orange, cinnamon brown, or pinkish variety of grossularite, while ~ is the trade name for fine dark green grossularite.
See also: What is the meaning of Stone, Color, Emerald, Garnet, Jewel?