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Galena & Marcasite

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Galena & Marcasite

Description Tabs

Description
Locality: 
Joplin Field, Jasper County, Missouri, United States of America
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2 × 1.7 cm
Description

A cluster of metallic grey cuboctahedral galena crystals with marcasite

Mineral Data
What's on the rock

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey

Marcasite

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