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Fluorapophyllite-(K)

Mineral Data
KCa4(Si8O20)(F,OH)·8H2O
Strunz: 
9.EA.15
Physical Properties
Crystal System: 
Orthorhombic
Streak: 
White
Hardness: 
4.5 - 5.0
Tenacity: 
brittle
Synonyms
Synonyms: 
Fluorapophyllite-K, Fluorapophyllite K, Fluorapophyllite - K and Fluorapophyllite -k