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Magnesio-fluoro-arfvedsonite
Type Locality
Vishnevye Mts (Vishnyovye; Cherry), Chelyabinsk Oblast', Southern Urals, Urals Region, Russia
Mineral Data
[Na][Na
2
][Mg
4
Fe
3+
][Si
8
O
22
](F,OH)
2
Strunz:
9.DE.25
Physical Properties
Streak:
Pale grey
Hardness:
5.5
