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Amethyst & Calcite

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NST634793

Amethyst & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Bülten-Adenstedt Mine, Ilsede, Peine District, Lower Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 7 × 2.5 cm
Description

A beautiful specimen of amethyst from the abandoned Emilie mine. Only a few finds from an underground amethyst vein are known from that famous locality for excellent groutite and kutnohorite specimens. Typically the amethyst are in combination with yellow, prismatic aggregates of calcite. Rare material.

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