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Siderite On Fluorite

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MMM27663

Siderite On Fluorite

Description Tabs

Description
Locality: 
East Pool Mine, Illogan, Cornwall, United Kingdom
Size Range: 
Small cabinet (7-10 cm)
Size: 
5.5 × 7 × 3 cm
Largest Crystal: 
0.30cm
Description

Honey brown siderite crystals to 3 mm covering granular fluorite.

There is some rubbing to the edge of the specimen but still a good example of an old time siderite from the East Pool Mine, accompany the specimen is a nice old label, chalybite on fluor.

Mineral Data
What's on the rock

Siderite

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

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