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Metavoltine & Tamarugite & Halotrichite

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SHS759348

Metavoltine & Tamarugite & Halotrichite

Description Tabs

Description
Locality: 
Julia Mine, Herne, North Rhine - Westphalia, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.2 × 3.8 × 1.8 cm
Description

Nice metavoltine and tamarugite and halotrichite on matrix

Mineral Data
What's on the rock

Metavoltine

Formula: 
Na6K2FeFe6(SO4)12O2·18H2O
Strunz: 
7.DF.35
Hardness: 
2.5
Type Locality: 
Zagh Mine (Tangeh Zagh mine; Madeni Zakh), Haji Abad town, Bandar Abbas (Bandar-e Abbas), Bandar-Abbas County, Hormozgan Province, Iran

Tamarugite

Formula: 
NaAl(SO4)2·6H2O
Strunz: 
7.CC.10
Hardness: 
3.0
Type Locality: 
Cerros Pintados ("Cerro Pintados"), Pampa del Tamarugal, El Tamarugal Province, Tarapacá Region, Chile...

Halotrichite

Formula: 
FeAl2(SO4)4·22H2O
Strunz: 
7.CB.85
Hardness: 
1.5 - 2.0
Streak: 
White
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