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Chrysoberyl Var Alexandrite

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JYJ739003

Chrysoberyl Var Alexandrite

Description Tabs

Description
Locality: 
Carnaíba, Pindobaçu, Bahia, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.2 × 2.6 × 1.7 cm
Description

A large cluster of chrysoberyl var. alexandrite in good crystals. The specimen shows a colour shift from green to amethystine (alexandrite effect) under artifical light. Rare!

 

Mineral Data
What's on the rock

Chrysoberyl

Formula: 
BeAl2O4
Strunz: 
4.BA.05
Crystal System: 
Orthorhombic
Hardness: 
8.5
Streak: 
White
Type Locality: 
Brazil

Alexandrite

Variety Of: 

Chrysoberyl

Formula: 
BeAl2O4
Strunz: 
4.BA.05
Hardness: 
8.5
Formula: 
BeAl2O4
Hardness: 
0.0