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Phlogopite & Anthophyllite Var Hermanov Ball

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CLB74647

Phlogopite & Anthophyllite Var Hermanov Ball

Hermanov's Ball (Hermanover Kugeln)
Classic Locality

Description Tabs

Description
Locality: 
Heřmanov, Křižanov, Žďár nad Sázavou, Vysočina Region, Czech Republic
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.6 × 3.5 × 4.8 cm
Largest Crystal: 
3.50cm
Description

Two "Hermanover Kugeln" ("Hermanov Spheres" = anthophyllite as a rim on spherical phlogopite aggregates).

Mineral Data
What's on the rock

Phlogopite

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

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

Hermanov Ball

Mixture Of: 

Phlogopite

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

Seller Information

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