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Muscovite Psm Tourmaline

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SHS865655

Muscovite Psm Tourmaline

Description Tabs

Description
Locality: 
Greenwood, Oxford County, Maine, United States of America
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.5 × 1.4 cm
Description

Nice pseudomorphose muscovite after tourmaline

Mineral Data
What's on the rock

Muscovite

Formula: 
KAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.5
Streak: 
White

Tourmaline

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