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Calcite On Dioptase In Quartz

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SMS1169449

Description Tabs

Description
Locality: 
Mindouli, Pool Region, Congo (Republic)
Class: 
Single Crystal
Size Range: 
Small cabinet (7-10 cm)
Size: 
3.5 × 7.8 × 2.1 cm
Weight: 
57.72gr
Description

The specimen has calcite on dioptase over clear quartz. The calcite crystals are bunched in small groups. The dioptase almost wraps some of the quartz crystals creating the impression of emerald green quartz.

Mineral Data
What's on the rock

Calcite

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

Dioptase

Formula: 
CuSiO3·H2O
Strunz: 
9.CJ.30
Crystal System: 
Trigonal
Hardness: 
5.0
Streak: 
Green
Type Locality: 
Altyn-Tyube dioptase deposit (Altyn-Tube), Altyn-Tyube area, Kirghiz Steppes (Asiatic Steppes), Karagandy Province (Qaragandy Oblysy; Karaganda Oblast'), Kazakhstan...

Quartz

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

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Start 02 Mar 18:00
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Shipping Information

Postage Area Price
Europe up to 500 grams
$12
Europe up to 1 kilogram
$16
United States up to 500 grams
$14
United States up to 1 kilogram
$18
Rest of world up to 500 grams
$14
Rest of world up to 1 kilogram
$18

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