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Szomolnokite & Voltaite & Pickeringite

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SHS760644

Szomolnokite & Voltaite & Pickeringite

Description Tabs

Description
Locality: 
Julia Mine, Herne, North Rhine - Westphalia, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 1.8 × 1.1 cm
Description

Szomolnokite and voltaite on pickeringite

Mineral Data
What's on the rock

Szomolnokite

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

Pickeringite

Formula: 
MgAl2(SO4)4·22H2O
Strunz: 
7.CB.85
Hardness: 
1.5 - 2.0
Type Locality: 
Cerros Pintados ("Cerro Pintados"), Pampa del Tamarugal, El Tamarugal Province, Tarapacá Region, Chile...
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