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Artichoke Quartz Var Smoky Quartz Calcite & Dolomite

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SLN522106

Artichoke Quartz Var Smoky Quartz Calcite & Dolomite

Irradiated

Description Tabs

Description
Locality: 
Cavnic Mine, Maramureș County, Romania
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
6.4 × 9.1 × 6.9 cm
Weight: 
301.00gr
Description

Nice and aesthetic specimen from Cavnic Mine with big crystals of artichoke quartz var smoky in association with creamy white calcite, pink dolomite and sparkling small chalcopyrite crystals. 

Please note it is widely believed that these specimens were irradiated in Hungary after mining - changing the quartz from white to black.

Mineral Data
What's on the rock

Artichoke Quartz

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0

Smoky Quartz

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
SiO2
Hardness: 
0.0

Calcite

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

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

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