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Epidote Byssolite & Adularia On Albite

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CLB500346

Epidote Byssolite & Adularia On Albite

Classic Locality

Description Tabs

Description
Locality: 
Knappenwand, Zell am See District, Salzburg, Austria
Class: 
Single Crystal
Size Range: 
Cabinet (10-18 cm)
Size: 
10.8 × 6.2 × 5.5 cm
Description

Nice, dark green epidote crystals from the most famous locality for the species. Acicular, 'hairy' white byssolite. The pearly white crystals seem to be albite, covered with tiny adularia 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...

Byssolite

Variety Of: 

Amphibole Supergroup

Formula: 
AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Hardness: 
0.0
Hardness: 
0.0

Adularia

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Monoclinic
Hardness: 
6 Ortho - clase

Albite

Formula: 
NaAlSi3O8
Strunz: 
9.FA.35
Crystal System: 
Triclinic
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Finnbo (Finbo), Falun, Dalarna, Sweden

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