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Ershovite

Type Locality
Koashva quarry, Koashva Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Mineral Data
Na4K3(Fe,Mn,Ti)2Si8O22(OH)4·4H2O
Strunz: 
9.DF.15
Physical Properties
Streak: 
White
Hardness: 
2.0 - 3.0