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Metasideronatrite & Metavoltine

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SER537028

Metasideronatrite & Metavoltine

Description Tabs

Description
Locality: 
Le Cetine di Cotorniano Mine, Chiusdino, Siena Province, Tuscany, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.7 × 5.1 × 2.1 cm
Description

Orange-yellow metasideronatrite with minor metavoltine and some yellow crystals of sulphur

Mineral Data
What's on the rock

Metasideronatrite

Formula: 
Na2Fe(SO4)2(OH)·H2O
Strunz: 
7.DF.20
Hardness: 
1.5 - 2.5
Type Locality: 
Sierra Gorda District, Antofagasta Province, Antofagasta Region, Chile

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