Arsentsumebite ps. after Mimetite with Azurite Wulfenite and Malachite ps. after Azurite - image 1

Arsentsumebite ps. after Mimetite with Azurite Wulfenite and Malachite ps. after Azurite

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A tremendously rich and varied specimen from Tsumeb, displaying many mineral species and two forms of pseudomorph. The dominant species is Arsentsumebite after Mimetite, which forms acidic light lime-green acicular replacements to over 2 cm all across the display face, hexagonal in cross-section and many with hollow centres. Granular Arsentsumebite also constitutes the surrounding and underlying matrix and hence the overall colour of the specimen. Nestling within the vuggy structure are many wafer-thin square tabular crystals of unusual creamy-grey-white Wulfenite and nearly all to about 2 or 2.5 mm on edge. Scattered around are numerous navy-blue Azurite crystals to about 5 mm and occasional Malachite pseudomorphs after Azurite. This fascinating specimen also has small patches of Rosasite and a mustard-yellow acicular mineral, probably remnant etched Mimetite which has not been replaced by Arsentsumebite. A great specimen indeed.

Product details

SizeSmall Cabinet
Dimensions5.2 x 7.9 x 3.0 cm
Added on10/24/2024
Current owner
Unknown Owner
Acquired
Jul 2026
Price paid
$3,000.00
Previous owners
DateCollectorAcquisition price
—Crystal ClassicsNot disclosed

Learn more

Malachite
Mineral guide
Learn about Malachite
vivid green banded crystals and botryoidal forms from copper deposits; color varieties, formation clues, and identification tips for collectors.
Malachite
Regional guide
Malachite from Tsumeb Mine, Namibia
from the Tsumeb Mine, Namibia - azurite-related pseudomorphs, velvety acicular sprays, blue-on-green contrast, highly valued by collectors for form.
Locality guide
Tsumeb
Tsumeb, Namibia — world-renowned locality famed for a rich copper–lead–zinc ore pipe, with dioptase on calcite, azurite blades, and smithsonite prized by colle…