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Hermanov Ball

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MNR753930

Hermanov Ball

Classic Locality

Description Tabs

Description
Locality: 
Heřmanov, Křižanov, Žďár nad Sázavou, Vysočina Region, Czech Republic
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.2 × 3.5 × 1.7 cm
Description

Heřmanov sphere - spherical aggregate of coarse-grained flogophite with rim of radial anthophyllite.

Mineral Data
What's on the rock

Hermanov Ball

Mixture Of: 

Phlogopite

Formula: 
KMg3(AlSi3O10)(OH,F)2
Strunz: 
9.EC.20
Hardness: 
2.0 - 3.0