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Product Code :   TAN001
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 All About Tanzanite 

Tanzanite is the blue/violet variety of the mineral zoisite (a calcium aluminium hydroxyl Sorosilicate) belonging to the epidote group. It was discovered by a Tanzanian Jumanne Mhero Ngoma in the Mererani Hills of Manyara Region in Northern Tanzania in 1967, near the city of Arusha and Mount Kilimanjaro. Tanzanite is used as a relatively cheap gemstone, where it can substitute for the more expensive sapphire after undergoing artificial heat treatment to form a deep blue coloration. Naturally formed tanzanite is extremely rare and is endemic only to the Mererani Hills.Tanzanite is noted for its remarkably strong trichroism, appearing alternately sapphire blue, violet and burgundy depending on crystal orientation. Tanzanite can also appear differently when viewed under alternate lighting conditions. The blues appear more evident when subjected to fluorescent light and the violet hues can be seen readily when viewed under incandescent illumination. Tanzanite is usually a reddish brown in its rough state, requiring heat treatment to bring out the blue violet of the stone.

Tanzanite is America’s pride, it is the American dream. But dreams do come true and thats whats happening around this country America; dreams are coming true. Tanzanite is one of the loveliest gemstone in todays market, facetted stones are the most commonly bought and thus produced type of cutting style. With not too much room to play around with the creativity in this highly valued stone, most common shapes are just Ovals, Rounds, Pears, Octagons, Hearts, Marquises. But Ovals really stand out at the top of the pyramid.


Luster-                                 Vitreous, pearly on cleavage surfaces

Streak-                                 White or colorless

Specific gravity-                 3.10–3.38

Optical properties-             biaxial positive

Refractive index-               1.69–1.70

Birefringence-                     0.006–0.018

Color-                                   Blue, Violet

We have a great supply of Tanzanite Facetted gemstones. Here are some of the pieces from our stocklist, if any of you are interested in sourcing freesize stones from us, simply contact us at

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