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Epidote With Actinolite

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TBM810972

Epidote With Actinolite

Classic Locality

Description Tabs

Description
Locality: 
Knappenwand, Zell am See District, Salzburg, Austria
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
13.2 × 5.2 × 4.6 cm
Weight: 
374.00gr
Description

Swarm of elongated parallel  Epidote crystals up to 8 mm size within a felt of needle-like Byssolite crystals

Mineral Data
What's on the rock

Epidote

Formula: 
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05a
Crystal System: 
Monoclinic
Hardness: 
6.0
Streak: 
Colorless
Type Locality: 
Bourg d'Oisans, Isère, Rhône-Alpes, France...

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