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Tourmaline

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MGR574606

Tourmaline

Description Tabs

Description
Locality: 
Santa Rosa Mine, Itambacuri, Minas Gerais, Brazil
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 2.6 × 0.5 cm
Description

A wonderful and very uncommon slice. Along the edges you can see one dark and one light green zoning. Then it becomes more colorless, then pink, colorless again and finally a light blue framing of the very dark blue center. When backlit you can see an amazing royal blue color, like azurite and with crazy good saturation. From famous Santa Rosa mine, so you should also rank it high for the locality. Well cut and polished at front display and reverse, too.

Mineral Data
What's on the rock

Tourmaline

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