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Voltaite & Rhomboclase

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SHS81555

Voltaite & Rhomboclase

Description Tabs

Description
Locality: 
Alcaparrosa Mine, Cerritos Bayos, El Loa Province, Antofagasta Region, Chile
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.7 × 1.7 cm
Description

Voltaite crystals and rhomboclase crystals on matrix.

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

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
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