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Kutnohorite & Calcite

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MNT724408

Kutnohorite & Calcite

ex Paul Hanses (Meggen, GER) - no old label
Classic Locality

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Description
Locality: 
Bülten-Adenstedt Mine, Ilsede, Peine District, Lower Saxony, Germany
Class: 
Massive/Crystalline
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.7 × 2.5 × 2.2 cm
Description

THIS is the classic locality for kutnohorite in Germany: The iron ore mine of Bülten-Adenstedt yielded outstanding specimens of manganese and iron minerals as well as beautiful amethyst samples and more during the mining period which ended in 1976 (Emilie shaft). This sample is a classic with typical aggregates of slight salmon-coloured kutnohorite accompanied by calcite. The limonite ore matrix is also present in bits. Rare stuff! Collected by the late Paul Hanses in the early 1960s.

Mineral Data
What's on the rock

Kutnohorite

Formula: 
Ca(Mn,Mg,Fe)(CO3)2
Strunz: 
5.AB.10
Hardness: 
3.5 - 4.0
Type Locality: 
Poličany, Kutná Hora (Kuttenberg), Central Bohemia Region, Bohemia (Böhmen; Boehmen), Czech Republic

Calcite

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

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Best regards Roger

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