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Thomsonite-Sr

Type Locality
Rasvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Mineral Data
Na(Sr,Ca)2[Al5Si5O20]·7H2O
Strunz: 
9.GA.10
Physical Properties
Colour: 
Colorless
Hardness: 
5.0 - 0.0
Synonyms
Synonyms: 
Thomsonite Sr and Thomsonite - Sr