Updated 2d ago
1
Azurite with Malachite and Anglesite$600.00
Wire transfers available, to set up
This small cabinet sized specimen is a superb demonstration of the complex geochemical processes that have taken place within the ore bodies at Tsumeb mine. Three-quarters of the main display face are covered by small (up to 8 or 9 mm across) bladed Azurite crystals, but only a fraction of these remain as glossy deep blue Azurite, most are either fully replaced by velvety green Malachite, or are in an intermediate stage of alteration. The other third, to one quarter of the display surface is a combination of Anglesite (bladed lead sulphate) and Cerussite (platy to tabular lead carbonate) both of which form under the opposite geochemical conditions to each other (acid and alkali). The Azurite and Malachite pseudomorphs after Azurite crystals are mostly in very good condition, with only light abrasion of note. Ex Kessler Collection.
Comments
Known provenance
Species and Locality Wiki Pages
Collectors of Azurite from Tsumeb
Azurite from Namibia Sales Data
From
To
From
To
Loading sales data...
All Sales
Loading specimens...