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Guérinite

Type Locality
Daniel Mine (St. Daniel Mine), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany
Mineral Data
Ca5(AsO4)2(HAsO4)2·9H2O
Strunz: 
8.CJ.75
Physical Properties
Colour: 
Colorless
Crystal System: 
Monoclinic
Streak: 
White
Hardness: 
1.5
Tenacity: 
brittle
Synonyms
Synonyms: 
Guerinite