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Calcite & Amethyst

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NST692595

Calcite & Amethyst

Description Tabs

Description
Locality: 
Gyöngyösoroszi, Mátra Mountains, Heves County, Hungary
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.7 × 5 × 3 cm
Largest Crystal: 
1.00cm
Description

A nice old-timer showing white Calcites on Amethyst and minor ore matrix. The Amethysts partially show some damages, the main Calcite groups are free of damage.

Mineral Data
What's on the rock

Calcite

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

Amethyst

Variety Of: 

Quartz

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