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Marcasite & Sphalerite

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HRJ114418

Marcasite & Sphalerite

Description Tabs

Description
Locality: 
Seilles, Andenne, Namur District, Belgium
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 2.5 cm
Largest Crystal: 
0.80cm
Description

Brass marcasite crystal clusters on sphalerite. The sphalerite is bright orange and dark brown in contact with the schalenblende. The specimen has been acid treated to reveal its beauty.

Mineral Data
What's on the rock

Marcasite

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

Sphalerite

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

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