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Melanotekite & Phlogopite

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ESM527568

Melanotekite & Phlogopite

Type Locality

Description Tabs

Description
Locality: 
Långban, Filipstad, Värmland County, Sweden
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.7 × 4 × 3.4 cm
Description

Lustrous black melanotekite crystals with brownish plates of phlogopite

Mineral Data
What's on the rock

Melanotekite

Formula: 
Pb2Fe3+2(Si2O7)O2
Strunz: 
9.BE.80
Hardness: 
6.5
Type Locality: 
Långban, Filipstad, Värmland, Sweden

Phlogopite

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