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Rhomboclase & Römerite

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FNW68270

Rhomboclase & Römerite

Description Tabs

Description
Locality: 
Rio Tinto Mines, Huelva, Andalusia, Spain
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.5 × 2.2 cm
Description

Aggregates of clear rhomboclase crystals with small pale brown römerite crystals.

Mineral Data
What's on the rock

Rhomboclase

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

Römerite

Formula: 
Fe2+Fe3+2(SO4)4·14H2O
Strunz: 
7.CB.75
Hardness: 
3.0 - 3.5
Type Locality: 
Rammelsberg Mine, Rammelsberg, Goslar, Harz, Lower Saxony, Germany
Fine Minerals World