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Harmotome

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CR614759

Harmotome

Classic Locality

Description Tabs

Description
Locality: 
St Andreasberg District, Lower Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
13 × 11 × 7 cm
Description

This is one of the best and riches harmotome specimens I ever had.

Hundreds of lustrous sharp harmotome crystals all over the specimen. Very attractive.

With tiny cubanite hedgehogs all over the specimen

Collected 1996

Mineral Data
What's on the rock

Harmotome

Formula: 
(Ba0.5,Ca0.5,K,Na)5[Al5Si11O32] ·12H2O
Strunz: 
9.GC.10
Crystal System: 
Monoclinic
Hardness: 
4.0 - 5.0
Streak: 
White
Type Locality: 
St Andreasberg, St Andreasberg District, Harz, Lower Saxony, Germany