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Chrysocolla Psm Malachite & Azurite

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LJM720196

Chrysocolla Psm Malachite & Azurite

Ex. Leo Jahaan Collection
Pseudomorph

Description Tabs

Description
Locality: 
Lupoto Mine, Kakumba, Kipushi, Haut-Katanga, DR Congo
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 6.5 × 3.2 cm
Weight: 
65.00gr
Description

Here is an incredible pseudomorph from a famous find a few years ago, very popular with collectors so specimens from the find are now rarely available.

It is believed that initially azurite formed on a limonite crust, which later pseudomorphed to malachite, then later it pseudomorphed again to form these bright blue chrysocolla 'fingers'.

This specimen features one particularly large ex-azurite 'blade' over 3cm in length, as well as many small projecting 'towers'.

There is also some evidence of the malachite stage, particularly around the edges and small patches on the rear. The rear is also covered with an interesting speckled chrysocolla pattern.

Great display size and condition, a fantastic addition to any collection.

Ex. Collection of Leo Jahaan

Mineral Data
What's on the rock

Chrysocolla

Formula: 
Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O (x < 1)
Strunz: 
9.ED.20
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.5

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...
Jahaan Minerals

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Please read the dimensions of the specimen, as the size of minerals in photos can be misleading.

To see the details shown in close-up macro photos, you may require a high quality magnifying glass or jeweler's loupe.

Care has been taken to accurately display the colors of the specimen. However, please be aware that computer monitors and phone screens each display colors slightly differently. Differences in light brightness and light source can also drastically alter the appearance of mineral colors. Therefore please be aware that while these photos are accurate and colors have not been enhanced, what you see on your screen may vary slightly from what you see in your hand, and may require specific lighting conditions (usually brighter is better).

Information regarding the specimen's found locality and mineral identification is believed to be correct, however due to the complexities of ID'ing minerals and tracking source locations in rare cases this data may be imprecise.

If you have any questions or concerns please don't hesitate to send a message.