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Calcite On Quartz

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PDM613212

Calcite On Quartz

Description Tabs

Description
Locality: 
Kipushi Mine, Haut-Katanga, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.4 × 5.8 × 2.8 cm
Largest Crystal: 
0.60cm
Description

White acute rhombohedral crystals of calcite on a crust of quartz included by iron hydr(oxides). The specimen can be displayed all around and it has just a contact point.

Specimen #114 from the collection of Achiel Moors, a Belgian colonist in the D.R.Congo from 1957 to 1972.

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

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