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Tourmaline & Lepidolite

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MGR711851

Tourmaline & Lepidolite

Description Tabs

Description
Locality: 
Pederneira Mine, São José da Safira, Minas Gerais, Brazil
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 3.2 × 2.3 cm
Description

The main crystal shows pastell color, I used minor backlight at the base to show pale pink-violet color, then the color turns to light blue-grey and finally you can see a concentration of green color at the end-point. The crystal is framed with light lepidolite, which gives a very aesthetic visual impact to the specimen. No significant damages to report, bottom was on the rock.

Mineral Data
What's on the rock

Tourmaline

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

Lepidolite

Synonym Of: 

Mica Group

Formula: 
KLi2Al(Si4O10)(F,OH)2 to K(Li1.5Al1.5)(AlSi3O10)(F,OH)2
Group Parent: 
Mica
Hardness: 
2.5 - 3.5
Colour: 
Pink, light purple, light rose red
Streak: 
White