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Malachite Psm Azurite & Rosasite

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MNT133589

Malachite Psm Azurite & Rosasite

ex Dr. Krantz (GER) - no old label
Classic Locality

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Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.1 × 2.1 × 1.6 cm
Description

Nice classic from Tsumeb and an old time specimen: small miniature of malachite pseudomorphs after azurite crystals which in part exhibit a blueish thin cover consisting of most probably rosasite. These were only found in the uppermost levels of the Tsumeb mine. In former times these were sometimes labeled as Paraurichalcite which is according to mindat a "Name given to ill-defined botryoidal crusts and earthy materials formed by the action of zinc-bearing solutions on Malachite (Tsumeb). May be a mixture of malachite and rosasite". Some cerussite present.

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...

Rosasite

Formula: 
(Cu,Zn)2(CO3)(OH)2
Strunz: 
5.BA.10
Crystal System: 
Monoclinic
Hardness: 
4.5
Type Locality: 
Rosas Mine, Narcao, Carbonia-Iglesias Province, Sardinia, Italy

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Terms & Conditions

Thank you for your interest in my offers! Payment is possible via Paypal, bank transfer or cash if you pick up the item(s) personally. Bank data will be provided after settling the auction/transaction(s) if needed.

In case you are not happy with a specimen, you may send it back within 4 weeks. After receipt, i will refund the price minus shipping costs. Please inform me before sending an item back. If you have any questions (or maybe complaints) please feel free to contact me.

Best regards Roger

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