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Goshenite On Muscovite Psm Feldspar

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PDM719824

Goshenite On Muscovite Psm Feldspar

Gem Crystal

Description Tabs

Description
Locality: 
Erongo Mountains, Karibib, Erongo Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 4 × 2.8 cm
Largest Crystal: 
0.90cm
Description

Lustrous undamaged crystal of beryl, variety goshenite, on a matrix of yellow polycrystalline muscovite and tourmaline needles that is a pseudomorph crust after feldspar.

Found in 2018.

Mineral Data
What's on the rock

Goshenite

Variety Of: 

Beryl

Formula: 
Be3Al2(Si6O18)
Strunz: 
9.CJ.05
Hardness: 
7.5 - 8.0
Hardness: 
0.0

Muscovite

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

Feldspar

Group Parent: 
Feldspar Group

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