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Zvyaginite
Type Locality
Malyi Punkaruaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
Mineral Data
NaZnNb
2
Ti[Si
2
O
7
]
20
(OH,F)
3
(H
2
O)
4
+
(x < 1)
Physical Properties
Hardness:
2.5 - 3.0
Tenacity:
brittle
