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Derbylite

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HEF779168

Derbylite

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Description
Locality: 
Buca Della Vena Mine, Apuan Alps, Lucca Province, Tuscany, Italy
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.2 × 1.1 cm
Description

Black crystals of derbylite on matrix

Mineral Data
What's on the rock

Derbylite

Formula: 
Fe3+4Ti3Sb3+O13(OH)
Strunz: 
4.JB.55
Crystal System: 
Monoclinic
Hardness: 
5.0
Streak: 
Brown
Type Locality: 
Tripuí (Tripuhy), Main district, Ouro Preto, Iron Quadrangle, Minas Gerais, Brazil

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