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Amethyst & Calcite

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MGR586278

Amethyst & Calcite

Description Tabs

Description
Locality: 
Droujba Mine, Djurkovo, Laki Obshtina, Plovdiv Oblast, Bulgaria
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.4 × 6.9 × 5.8 cm
Description

Very rare material with some exposed light violet amethyst crystals - they are sharp terminated and very glossy. The specimen shows a nice combination with small, snowy white and well developed calcite crystals. Should be high ranked for it´s rarity.

Mineral Data
What's on the rock

Amethyst

Variety Of: 

Quartz

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

Calcite

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