Adamite on Limonite from Ojuela Mine, Mapimi, Durango, Mexico [ADAMITE6]
Adamite on Limonite
Ojuela Mine, Mapimi, Durango, Mexico
Dioptase from Altyn-Tyube, Karagandy Oblast, Kazakhstan [DIOPTASE1]
Dioptase
Altyn-Tyube, Karagandy Oblast, Kazakhstan
Quartz
Quartz "Faden"
Dara Ismael Khan District, Waziristan, Pakistan
Quartz, var. Herkimer Diamond from Ace of Diamonds Mine, Herkimer County,  New York [HERKIMER6]
Quartz, var. Herkimer Diamond
Ace of Diamonds Mine, Herkimer County, New York
Quartz Var. Rose from Lavra da Ilha Pegmatite, Taquaral, Itinga, Aracuai, Minas Gerais, Brazil [ROSE3]
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Zoisite Var. Tanzanite from Arusha, Merelani, Tanzania [TANZANITE4]
Zoisite Var. Tanzanite
Arusha, Merelani, Tanzania

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Zoisite Var. Tanzanite from Merelani Mine, Lelatema Mountains, Arusha Region, Tanzania


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(click on the pictures to enlarge)

Zoisite Var. Tanzanite from Merelani Mine, Lelatema Mountains, Arusha Region, Tanzania [db_pics/pics/tanzanite6a.jpg] Zoisite Var. Tanzanite from Merelani Mine, Lelatema Mountains, Arusha Region, Tanzania [db_pics/pics/tanzanite6b.jpg] Zoisite Var. Tanzanite from Merelani Mine, Lelatema Mountains, Arusha Region, Tanzania [db_pics/pics/tanzanite6c.jpg] Zoisite Var. Tanzanite from Merelani Mine, Lelatema Mountains, Arusha Region, Tanzania [db_pics/pics/tanzanite6d.jpg]



TANZANITE6 - Zoisite Var. Tanzanite
$ 695.00 (=~ € 649.99)
Merelani Mine, Lelatema Mountains, Arusha Region, Tanzania
thumbnail - 2.25 x 1.1 x .9 cm

Tanzanite is a gem form of zoisite, found only in the Arusha region of Tanzania. Mining is very deep, as gemstones easily go for $250 - $1000+ per carat. Crystals are also produced, of varying quality given largely that anything with a gemmy area within it gets cut. Also most are dinged, so getting pristine specimens is very difficult. Most pieces are heat treated, which mimics the natural geology that gives the crystals that amazing blue-purple color. The mines are incredibly deep and long term future production is in question.

It weighs 21.37 carats (4.27 grams). It is a vibrant blue-purple with remarkable gemminess through out. The termination is pristine. The side near the bottom has a slight sheered spot that under the microscope is a crystallied face, so this happened while in the pocket and still growing.(it's very hard to spot) The main front face has some raised triangles (known as screw distortions to geologists), overall a great crystal, with flashes of purple when looking at it from the side.




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