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Calcite & Chalcopyrite

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GPM648967

Calcite & Chalcopyrite

Description Tabs

Description
Locality: 
Sweetwater Mine, Ellington, Reynolds County, Missouri, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 4.2 × 2.6 cm
Largest Crystal: 
3.40cm
Description

A showy glassy and lustrous, calcite crystals on matrix from the famous Sweetwater Mine of Missouri. Transparent, white doubly-terminated calcite crystals with sharp terminations. Two biggest crystals measuring about 3.4 cm long each are complete and undamaged! Minor iridescent chalcopyrite crystals are present. 

447

Mineral Data
What's on the rock

Calcite

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

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0

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