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Malachite Psm Azurite

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LGM166745

Malachite Psm Azurite

Ex Mineralien-Niederlage Freiberg, Germany
With Antique Label

Description Tabs

Description
Locality: 
Rudabánya, Rudabányai Mountains, Borsod-Abaúj-Zemplén County, Hungary
Size Range: 
Miniature (4.5-7 cm)
Size: 
4 × 5.5 × 2 cm
Description

Malachite pseudomorphing azurite grown up on a botryoidal goethite/limonite crust. With printed label of the Mineralien-Niederlage (mineral repository) Freiberg, Saxony, Germany and corresponding on-glued number sticker. Founded in 1756, it is now part of the mining college Freiberg. Hand-written by Felix Otto Edelmann, who was administrator in the period 1920 - 1952. 'Comitat Borsod' was a historic administrative unit in the hungarian kingdom, formed in 11th century. Weight: 70 grams

Mineral Data
What's on the rock

Malachite

Formula: 
Cu2(CO3)(OH)2
Strunz: 
5.BA.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0

Azurite

Formula: 
Cu3(CO3)2(OH)2
Strunz: 
5.BA.05
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0
Type Locality: 
Chessy copper mines, Chessy-les-Mines, Le Bois d'Oingt, Rhône, Rhône-Alpes, France...

Seller Information

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