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Tourmaline

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MGR862766

Tourmaline

Classic Locality

Description Tabs

Description
Locality: 
Sapo Mine, Goiabeira, Minas Gerais, Brazil
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.3 × 1 × 0.9 cm
Description

Small but a jewel! A very rare crystal with this famous blue cap! Pink at the base, then it becomes lighter with stpes of blue and finally this thin, intense blue cap! The locality is famous for this discovery and this crystal is really a fine sample.

Mineral Data
What's on the rock

Tourmaline

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