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Phillipsite-K

Type Locality
Capo di Bove, Rome Province, Latium, Italy
Mineral Data
(K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O
Strunz: 
9.GC.10
Physical Properties
Colour: 
White
Crystal System: 
Monoclinic
Streak: 
White
Hardness: 
4.0 - 5.0
Synonyms
Synonyms: 
Phillipsite K and Phillipsite - K