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Muscovite

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MGR872905

Muscovite

Floater

Description Tabs

Description
Locality: 
Conselheiro Pena, Minas Gerais, Brazil
Class: 
Single Crystal
Size Range: 
Museum (18cm plus)
Size: 
22.5 × 26 × 1.8 cm
Description

This muscovite floater - yes just muscovite - is up to 26 centimeter across. So although it is "just muscovite" this dimension is really very impressive! Both sides show excellent luster, sharp termination and there are no significant damages or contacts to report.

Mineral Data
What's on the rock

Muscovite

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