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Actinolite Var Smaragdite

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CR534789

Actinolite Var Smaragdite

Description Tabs

Description
Locality: 
Prägraten am Großvenediger, Lienz District, Tyrol, Austria
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 7 × 3.5 cm
Largest Crystal: 
4.50cm
Description

A very good and old specimen of deep green and lustrous actinolite (var. Smaragdite) in matrix.

Ex Fritz Haller collection

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

Smaragdite

Variety Of: 

Actinolite

Formula: 
☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Strunz: 
9.DE.10
Hardness: 
5.0 - 6.0
Formula: 
Ca2(Mg,Fe2+)5Si8O22(OH)2
Hardness: 
0.0
Streak: 
white