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Potassic-fluoro-hastingsite

Type Locality
Greenwood mine (Patterson mine), Town of Tuxedo, Orange Co., New York, USA
Mineral Data
{K}{Ca2}{Fe2+4Fe3+}(Al2Si6O22)(F,OH)2
Strunz: 
9.DE.15
Physical Properties
Hardness: 
6.0 - 0.0
Tenacity: 
brittle
Synonyms
Synonyms: 
Fluoropotassichastingsite