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Fluorite Siderite & Sphalerite

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EDC508263

Fluorite Siderite & Sphalerite

Fluorescent

Description Tabs

Description
Locality: 
Rampgill Mine, Nenthead, Cumbria, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Museum (18cm plus)
Size: 
5 × 22 × 9 cm
Largest Crystal: 
1.00cm
Description

This is a nice plate of limestone matrix covered with clear white quartz and further covered with pale yellow fluorite. The fluorite shows a few signs of damage to some crystals and has a light covering of siderite.

Mineral Data
What's on the rock

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Crystal System: 
Isometric
Hardness: 
4.0
Streak: 
White
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Siderite

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

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

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