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Calcite

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ATH865175

Calcite

Description Tabs

Description
Locality: 
Mahlscheid Quarry, Herdorf, Siegerland, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5.4 × 5.2 cm
Description

Calcite from Mahlscheid, Herdorf, Germany.

Nice beige half-globe with diameter about 3.5 cm on basalt matrix.

For decades this specimens where traded as "aragonite" nowadays they were determined as calcite - so you can find them with both labels.

In the end the amazing appearance and the rarity makes this specimens so special.

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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