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Tourmaline

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MGR839296

Tourmaline

Classic Locality

Description Tabs

Description
Locality: 
Sapo Mine, Goiabeira, Minas Gerais, Brazil
Class: 
Single Crystal
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 1.1 × 1 cm
Description

The locaity is famous for blue caps - well this is not just a blue cap; it is a complete blue crystal with minor green tones in the upper quarter. It is well shaped and lustrous all around with multiple stepped end-points.Shouldbe high ranked forthe locality andforthisamazing color.

Mineral Data
What's on the rock

Tourmaline

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