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Trattnerite
Type Locality
Stradner Kogel, Wilhelmsdorf, Bad Gleichenberg, Styria, Austria
Mineral Data
□(Fe
3+
,Mg,Fe
2+
)
2
(Mg,Fe
2+
,Fe
3+
)
3
(Si
12
O
30
)
Strunz:
9.CM.05
Physical Properties
Colour:
Blue
Streak:
White
Hardness:
0.0
Tenacity:
brittle
