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Arsentsumebite Bayldonite Malachite Psm & Azurite

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KMF567097

Arsentsumebite Bayldonite Malachite Psm & Azurite

Pseudomorph

Description Tabs

Description
Locality: 
Tsumeb Mine, Otavi Highlands, Namibia
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.4 × 4.2 × 4.5 cm
Description

A striking combination of four minerals the likes of which only Tsumeb perfected. A very attractive showy and colorful specimen comprised of bright blue robust azurite that is partially altered into malachite in the central zone contrasting perfectly.

A rich mineralization of grass green arsentsumebite cuts into the azurite from the left and is present as an overgrowth across the entire right side of the specimen. The rich arsentsumebite zone hosts numerous secondary gem azurite crystals on surface and is partially coated by a dusting of bayldonite that adds another dimension to the sequence.

The condition is excellent with some minor imperfections mostly related to attachment contacting to the peripheral edges.

 

Mineral Data
What's on the rock

Arsentsumebite

Formula: 
Pb2Cu(AsO4)(SO4)(OH)
Strunz: 
8.BG.05
Crystal System: 
Monoclinic
Hardness: 
4.0 - 5.0
Type Locality: 
Tsumeb Mine (Tsumcorp Mine), Tsumeb, Otjikoto Region (Oshikoto), Namibia

Bayldonite

Formula: 
PbCu3(AsO4)2(OH)2
Strunz: 
8.BH.45
Crystal System: 
Monoclinic
Hardness: 
4.5
Type Locality: 
Penberthy Croft Mine, St Hilary, Mount's Bay District, Cornwall, England, UK...

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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Seller's terms and conditions

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Pay for the largest items' full shipping cost then I add $10 per additional item.  the usual maximum items I can fit per box is 3, should there be additional items I then price a new box with the same calculation largest items full shipping + additional items at reduced rate. etc

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