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Gengenbachite
Type Locality
Silberbrünnle Mine, Haigerach valley, Gengenbach, Black Forest, Baden-Württemberg, Germany
Mineral Data
KFe
3+
3
(HPO
4
)
4
(H
2
PO
4
)
2
·6H
2
O
Strunz:
8.CA.65
Physical Properties
Streak:
White
Hardness:
2.0 - 0.0
Tenacity:
brittle
