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Kornelite Voltaite Szomolnokite Römerite Coquimbite & Rhomboclase

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SCH92818

Kornelite Voltaite Szomolnokite Römerite Coquimbite & Rhomboclase

Description Tabs

Description
Locality: 
Rio Tinto Mines, Huelva, Andalusia, Spain
Size Range: 
Cabinet (10-18 cm)
Size: 
14.2 × 11.4 × 8.7 cm
Description

An excellent stalactitc growth of szomolnokite and with an assorted mix of sulphates. There are several kornelite tufts, partly purple and partly white because the purple colour in the center is due to the fact to the mix with coquimbite while outer parts of the groups are pure kornelite.

Gemmy root-beer romerite crystals are scattered over the szomolnokite growths, while hot orange-red romerite is at the top of the specimen set on hairy halotrichite and associated with minor voltaite.

Bright purple coquimbite is present here and there. Also present yellow copiapite and others. At least eight different species!

Several more photos avalaible.

An unique specimen from Riotinto!

 

Mineral Data
What's on the rock

Kornelite

Formula: 
Fe2(SO4)3·7H2O
Strunz: 
7.CB.60
Hardness: 
0.0
Type Locality: 
Smolník (Schmöllnitz; Szomolnok), Gelnica Co., Košice Region, Slovakia

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

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

Coquimbite

Formula: 
Fe2-xAlx(SO4)3·9H2O, x ~0.5
Strunz: 
7.CB.55
Hardness: 
2.5
Streak: 
white
Type Locality: 
Coquimbo Region, Chile

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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