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Epidote

Type Locality
Bourg d'Oisans, Isère, Rhône-Alpes, France
Mineral Data
{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Strunz: 
9.BG.05a
Physical Properties
Crystal System: 
Monoclinic
Streak: 
Colorless
Hardness: 
6.0
Tenacity: 
brittle
Synonyms
Synonyms: 
Epidot, Pistazite, Epidote -, Epidoto and Epidota