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Ferberite Quartz & Siderite

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WND818279

Ferberite Quartz & Siderite

Classic Locality

Description Tabs

Description
Locality: 
Panasqueira Mines, Covilhã, Castelo Branco District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 5.3 × 5.2 cm
Description

A striking and pristine specimen of large, lustrous and striated, bladed Ferberite crystals on brown siderite crystals and accompanied by a single elongated Rockcrystal from the famous Panasqueira Mine of Portugal. All species are well developed and good terminated. This is outstanding material from this well-known locality, which is now closed

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Siderite

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

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