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Galena with Calcite On Manganoan Calcite

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PCZ197749

Galena with Calcite On Manganoan Calcite

Description Tabs

Description
Locality: 
Zacatecas, Zacatecas, Mexico
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 5 × 3 cm
Description

A group of sharp, reflective galena crystals with associated translucent 'dogtooth' calcite crystals are aesthetically placed on one side of sharp manganocalcite crystals. A lovely specimen that sits well for display.

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

Calcite

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

Manganoan Calcite

Variety Of: 

Calcite

Formula: 
CaCO3
Strunz: 
5.AB.05
Hardness: 
3.0
Formula: 
(Ca,Mn)CO3
Hardness: 
0.0
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