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Tourmaline Var Verdelite With Cookeite

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LGM893223

Tourmaline Var Verdelite With Cookeite

Ex Dr. Krantz, Bonn, Germany
Classic Locality

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Description
Locality: 
Mount Mica, Paris, Oxford County, Maine, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4 × 6.5 × 3 cm
Largest Crystal: 
2.30cm
Weight: 
64.00gr
Description

Green tourmaline crystals embedded in amorphous quartz matrix. Accompanied by crusts of brownish cookeite. The Mt. Mica mine was discovered in the early 19th century and is the type locality for cookeite.

Mineral Data
What's on the rock

Tourmaline

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

Verdelite

Variety Of: 

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Hardness: 
7
Hardness: 
0.0

Cookeite

Formula: 
(Al2Li)Al2(AlSi3O10)(OH)8
Strunz: 
9.EC.55
Hardness: 
2.5 - 3.5
Streak: 
White
Type Locality: 
Mount Mica Quarry (Mount Mica Mine), Paris, Oxford Co., Maine, USA

Seller Information

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