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Ferberite

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QRI773792

Ferberite

Description Tabs

Description
Locality: 
Nederland, Sugarloaf, Boulder County, Colorado, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
3 × 4.7 × 2.3 cm
Largest Crystal: 
0.50cm
Weight: 
60.00gr
Description

Sharp jet black ferberite crystals proudly developed over brown tanted matrix, assembled in a rich drusy. One in particular shows semi-parallel growth of the crystals, razor sharp and well developed. In a side vug, a few other crystals, also well formed.
Excellent lustre for the specimen from such an iconic locality, nowadays rather scarce in this quality. 

Weight includes its original plastic box.

Mineral Data
What's on the rock

Ferberite

Formula: 
FeWO4
Strunz: 
4.DB.30
Crystal System: 
Monoclinic
Hardness: 
4.0 - 4.5
Type Locality: 
Niña Mine, Sierra Almagrera, Cuevas del Almanzora (Cuevas de Vera), Almería, Andalusia, Spain

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