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Voltaite Chalcanthite Szomolnokite Römerite Rhomboclase

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SCH55712

Voltaite Chalcanthite Szomolnokite Römerite Rhomboclase

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Description
Locality: 
Rio Tinto Mines, Huelva, Andalusia, Spain
Size Range: 
Cabinet (10-18 cm)
Size: 
12.2 × 4.2 × 5.2 cm
Description

A matrix of massive pyrite is host to a mass of finely crystallized voltaite crystals with many associated species like fire-orange römerite, light blue chalcanthite, szomolnokite and minor but very good rhomboclase crystals (these are are incredible well defined and quite individual) The voltaite crystals are quite large, this is an outstanding voltaite specimen!

More photos avalaible.

Mineral Data
What's on the rock

Voltaite

Formula: 
K2Fe2+5Fe3+3Al(SO4)12·18H2O
Strunz: 
7.CC.25
Hardness: 
3.0 - 3.5
Type Locality: 
Solfatara di Pozzuoli, Pozzuoli, Phlegrean Fields, Naples Province, Phlegrean Volcanic Complex, Campania, Italy

Chalcanthite

Formula: 
CuSO4·5H2O
Strunz: 
7.CB.20
Crystal System: 
Triclinic - Pinacoidal
Hardness: 
2.5
Streak: 
White
Type Locality: 
Chuquicamata Mine, Chuquicamata District, Calama, El Loa Province, Antofagasta Region, Chile

Szomolnokite

Formula: 
FeSO4·H2O
Strunz: 
7.CB.05
Hardness: 
2.5
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

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
schani

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