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Dolomite

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MGR690482

Dolomite

Description Tabs

Description
Locality: 
Grevenbrück Quarry, Lennestadt, Sauerland, North Rhine - Westphalia, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.8 × 3.9 × 2.7 cm
Description

A group of well developed large (for the locality), light beige dolomite crystals with great history: labels from the "K&K montanistisches Museum" (museum on the Austrian monarchy for montan concerns), from the "K&K geolog. Reichsanstalt" (institute for geology in the monarchy) and a hand-written even older label from an unknown previous owner.

Mineral Data
What's on the rock

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White
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