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Legrandite

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PCZ114438

Legrandite

Rare Mineral

Description Tabs

Description
Locality: 
Ojuela Mine, Mapimi, Durango, Mexico
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 5 × 6 cm
Largest Crystal: 
1.40cm
Description

the main feature is a 1.4cm parallel twin of well terminated legrandite crystals which stand proud of the matrix. Other crystals form a 'skirt' around this. A few of these are damaged but do not detract from the twin. A fan of legrandite can be seen in a deep cavity.

Mineral Data
What's on the rock

Legrandite

Formula: 
Zn2(AsO4)(OH)·H2O
Strunz: 
8.DC.10
Crystal System: 
Monoclinic
Hardness: 
4.5
Streak: 
White
Type Locality: 
Flor de Peña Mine, Lampazos de Naranjo (Lampazos), Mun. de Lampazos de Naranjo, Nuevo Leon, Mexico
Peter Crozier Minerals