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Anthophyllite & Biotite

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SHS845053

Anthophyllite & Biotite

Description Tabs

Description
Locality: 
Heřmanov, Křižanov, Žďár nad Sázavou, Vysočina Region, Czech Republic
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 4 × 3.3 cm
Description

Nice ball with anthophyllite covering biotite

Mineral Data
What's on the rock

Anthophyllite

Formula: 
☐{Mg2}{Mg5}(Si8O22)(OH)2
Strunz: 
9.DE.05
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
5.5 - 6.0
Type Locality: 
Kjennerudvann Anthophyllite Prospect, Kjennerudvann, Kongsberg, Buskerud, Norway

Biotite

Group Parent: 
Mica Group