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Rankachite
Type Locality
Clara Mine, Rankach valley, Oberwolfach, Wolfach, Black Forest, Baden-Württemberg, Germany
Mineral Data
Ca
0.5
(V
4+
,V
5+
)(W
6+
,Fe
3+
)
2
O
8
(OH)·2H
2
O
Strunz:
7.GB.25
Physical Properties
Crystal System:
Orthorhombic
Hardness:
2.5
