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Rhomboclase

Type Locality
Smolník (Schmöllnitz; Szomolnok), Gelnica Co., Košice Region, Slovakia
Mineral Data
(H5O2)Fe3+(SO4)2·2H2O
Strunz: 
7.CB.55
Physical Properties
Streak: 
White
Hardness: 
2.0
Tenacity: 
elastic