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Calcite

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MBM864322

Calcite

Ex Obersteiger Erhard Wiederer
Classic Locality

Description Tabs

Description
Locality: 
Christiane Mine, Adorf, Diemelsee, Kassel, Hesse, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 11.5 × 4 cm
Description

Bird` nests are a very rare genesis in old mine areas. 

They were built by waterdrops falling on the ground and built a crater or „nest“. Small pieces of rock were the initial start up for the „eggs“. When the eggs become too big, they were fixed on the nest. Often the colour of the nest vary from the egg`s colour. Normally, the eggs have a size up to 1 cm, here the biggest egg is up to 14mm.

From the former mine foreman (=Obersteiger) of the Christiane mine:
Erhard Wiederer 1927-2014

Mineral Data
What's on the rock

Calcite

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

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Seller Shipment Germany 6,00 EUR  Europe 9,00 EUR Worldwide shipment 12,00 EUR