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Tanzanite - OvalTanzanite is a form of the mineral zoisite. This beautiful gem stone comes in velvety blue dazzling shades.
The gemstone name recalls its origin, Tanzania.
Tanzanite is a new gemstone and was discovered during the late 60's.
Enhancement code: H
Properties:
RI = 1.691-1.700
Specific gravity = 3.35
Species – Zoisite
Optic character – DR
Phenomena – chatoyancy (rare)
Care:
Clean with warm soapy water and a soft brush. Do not use an ultrasonic or steam cleaner. Avoid contact with acids and sudden temperature changes (as in jewelry repair).
Major sources:
Tanzania
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