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Grunerite

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SHS210456

Grunerite

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Description
Locality: 
Vila Cova Mine, Campeã, Vila Real District, Portugal
Size Range: 
Thumbnail (1-3cm)
Size: 
1.1 × 0.9 × 0.3 cm
Description

 Nice grunerite in matrix

Mineral Data
What's on the rock

Grunerite

Formula: 
☐{Fe2+2}{Fe2+5}(Si8O22)(OH)2
Strunz: 
9.DE.05
Hardness: 
5.0 - 6.0
Colour: 
nd
Streak: 
nd
Type Locality: 
Sarvengude ravine, Collobrières, Var, Provence-Alpes-Côte d'Azur, France...
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