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Tetraferriphlogopite

Type Locality
Kovdor Zheleznyi Mine (Iron Mine), Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Mineral Data
KMg3(Fe3+Si3O10)(OH,F)2
Strunz: 
9.EC.20
Physical Properties
Hardness: 
0.0