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Galena & Marcasite On Dolomite

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GND57137

Galena & Marcasite On Dolomite

Classic Locality

Description Tabs

Description
Locality: 
Sweetwater Mine, Ellington, Reynolds County, Missouri, United States of America
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 4 × 4.2 cm
Largest Crystal: 
1.50cm
Description

A Sweetwater specimen that features large lustrous galena crystals in both cubes and octahedrons.

These have formed on brassy micro-marcasite crystals which have in turn formed on dolomite crystals.

There is no damage and it comes with a previous Dan Weinrich dealer label.

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

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White
Gondwana Minerals