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Demantoid Topazolite & Quartz

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CLB505170

Demantoid Topazolite & Quartz

Gem Crystal

Description Tabs

Description
Locality: 
Antetezambato, Antsakoamanondro, Ambanja, Diana, Madagascar
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
15 × 7 × 6.2 cm
Description

Fantastic, almost emrald-green demantoid and more moss-green topazolite crystals between elongated quartz/pale amethyst crystals. Those clusters are constructed but with astonishing talent and accuracy. Just count ogether the value of the single crystals - most of them between 0.5 and 1 cm!

Mineral Data
What's on the rock

Demantoid

Variety Of: 

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Hardness: 
6.5 - 7.0

Topazolite

Variety Of: 

Andradite

Formula: 
Ca3Fe3+2(SiO4)3
Strunz: 
9.AD.25
Hardness: 
6.5 - 7.0
Hardness: 
0.0

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

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