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Ferrinatrite & Metavoltine

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SER553218

Ferrinatrite & Metavoltine

Description Tabs

Description
Locality: 
Le Cetine di Cotorniano Mine, Chiusdino, Siena Province, Tuscany, Italy
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.1 × 7.5 × 3 cm
Description

A large matrix specimen completely covered by white tufts of ferrinatrite and yellow aggregate of metavoltine

Mineral Data
What's on the rock

Ferrinatrite

Formula: 
Na3Fe(SO4)3·3H2O
Strunz: 
7.CC.35
Hardness: 
2.5
Type Locality: 
La Compañia Mine, Caracoles, 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