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Ferberite With Siderite

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PDM859065

Ferberite With Siderite

Description Tabs

Description
Locality: 
Panasqueira Mines, Covilhã, Castelo Branco District, Portugal
Class: 
Single Crystal
Size Range: 
Thumbnail (1-3cm)
Size: 
2.9 × 2 × 0.9 cm
Description

Tabular very lustrous ferberite crystal richly coated at the top edge and at the rear by honey gold discoidal siderite and metallic pyrite. Classic association from Panasqueira.

Found in 2009.

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

Siderite

Formula: 
FeCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White

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