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Fluorite Marcasite & Calcite

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ESM755932

Fluorite Marcasite & Calcite

Description Tabs

Description
Locality: 
Moscona Mine, Solis, Asturias, Spain
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 6.5 × 4 cm
Description

Yellow fluorite cubes hosting brassy marcasite crystals and colorless calcite crystals

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

Marcasite

Formula: 
FeS2
Strunz: 
2.EB.10a
Crystal System: 
Orthorhombic
Hardness: 
6.0 - 6.5

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White