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Siderite & Quartz

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MGR861809

Siderite & Quartz

Classic Locality

Description Tabs

Description
Locality: 
Panasqueira Mines, Covilhã, Castelo Branco District, Portugal
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.9 × 6.4 × 4.3 cm
Description

The main crystal of siderite is 71mm across - a phenomenal dimension! It is glossy with mutual stepped faces and complete all around and resting on absolutely water-clear quartz crystals. A dramatic; highly aesthetic piece in out-standing quality!

Mineral Data
What's on the rock

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