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Epidote Biotite Albite & Schorl

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SHS604383

Epidote Biotite Albite & Schorl

ex. Collection Edgar Franz (Freiberg/Saxony)

Description Tabs

Description
Locality: 
Packalpe, Styria, Austria
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 5.5 × 3 cm
Description

Nice epidote with biotite and albite with schorl

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...

Biotite

Group Parent: 
Mica Group

Albite

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

Schorl

Formula: 
Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Strunz: 
9.CK.05
Hardness: 
7.0