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Feklichevite
Type Locality
Kovdor Phlogopite mine (Mica Mine; Slyuda Mine; Kovdorslyuda Shaft), Kovdor Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Mineral Data
Na
11
Ca
9
(Fe
3+
,Fe
2+
)
2
Zr
3
Nb[Si
25
O
73
](OH,H
2
O,Cl,O)
5
Strunz:
9.CO.10
Physical Properties
Streak:
Brownish
Hardness:
0.0
