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Anthophyllite

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MCP728722

Anthophyllite

Description Tabs

Description
Locality: 
Heřmanov, Křižanov, Žďár nad Sázavou, Vysočina Region, Czech Republic
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.9 × 4.7 × 4 cm
Description

A concretion with grey, fibrous anthophyllite aggregates around a phlogopite nodule in the middle, so called “Heřmanov Ball” from the well-known locality Heřmanov, Moravia, Czech Republic. 

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

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