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            Tanzanite - PearTanzanite 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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