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Quartz

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MGR802699

Quartz

Description Tabs

Description
Locality: 
Jenipapo District, Itinga, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.8 × 5.5 × 3.7 cm
Description

This is very rare material - blue quartz is a great rarity world-wide. The color of these crystals is steel-grey to blue - the blue color is caused by inclusions of blue tourmaline. The main crystal is double terminated, the whole assemble is really aesthetic, the faces are partly glossy, the crystals arecomplete also at the reverse and bottom is also well shaped.

Mineral Data
What's on the rock

Quartz

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