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Blue Quartz & Tourmaline Inclusions

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CLB616795

Blue Quartz & Tourmaline Inclusions

Description Tabs

Description
Locality: 
Jenipapo District, Itinga, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.6 × 4.4 × 3 cm
Description

Blue quartz crystal group. The color is caused by diffuse tourmaline inclusions. The crystal surfaces show attachment marks of - I think - dissolved mica crystals.

Mineral Data
What's on the rock

Blue Quartz

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7

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