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Phlogopite

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PJM95635

Description Tabs

Description
Locality: 
Kalu Khan, Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Province, Afghanistan
Size Range: 
Thumbnail (1-3cm)
Size: 
2.1 × 1.6 × 0.8 cm
Description

Gem quality mica species are very difficult to obtain from any locality. This gem phlogopite from Afghanistan that came on the market a few years ago are some of the best quality crystals for the species that I have seen. This particular crystal is a very sharp, highly lustrous,  honey colored, twinnned crystal measuring 2.1 cm

Mineral Data
What's on the rock

Phlogopite

Formula: 
KMg3(AlSi3O10)(OH,F)2
Strunz: 
9.EC.20
Crystal System: 
Monoclinic - Prismatic
Hardness: 
2.0 - 3.0
Streak: 
White
Earthstones Australia

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