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Calcite On Quartz & Pyrrhotite

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PJM83122

Calcite On Quartz & Pyrrhotite

Ex J & S Mommers Collection

Description Tabs

Description
Locality: 
Zinc Corporation Mine, Broken Hill, Yancowinna County, New South Wales, Australia
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 2.6 × 1.8 cm
Description

A spray of terminated gemmy guartz crystals bedecked with small white calcite rhombs over a sulphide rich matrix. A small cavity near the base of the specimen has a single pyrrhotite blade with calcite

Mineral Data
What's on the rock

Calcite

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

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Pyrrhotite

Formula: 
Fe1-xS (x = 0 to 0.17)
Strunz: 
2.CC.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Earthstones Australia

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