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Arsenopyrite Siderite & Quartz

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ESM585422

Arsenopyrite Siderite & Quartz

Description Tabs

Description
Locality: 
Panasqueira Mines, Covilhã, Castelo Branco District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
3.5 × 12.5 × 7 cm
Description

Clusters of metallic arsenopyrite crystals with brown siderite crystals and clear quartz crystals

Mineral Data
What's on the rock

Arsenopyrite

Formula: 
FeAsS
Strunz: 
2.EB.20
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

Siderite

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

Quartz

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