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Actinolite

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CLB62564

Actinolite

Description Tabs

Description
Locality: 
Granatenkogel North, Gaisberg Valley, Ötztal, Tyrol, Austria
Size Range: 
Cabinet (10-18 cm)
Size: 
10.3 × 6.5 × 4.2 cm
Description

A large specimen of lustrous green actinolite crystals in mica-schist matrix. In real life the actinolite crystals are far darker and lustrous, translucent emerald-green.

Mineral Data
What's on the rock

Actinolite

Formula: 
☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Strunz: 
9.DE.10
Crystal System: 
Monoclinic - Prismatic
Hardness: 
5.0 - 6.0
Streak: 
White

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