Malachite after azurite (w. cerussite)

TSNB741
Specimen
Klein, W.
Exhibit 1. Malachite after azurite (w. cerussite); 37 mm.
Exhibit 1. Malachite after azurite (w. cerussite); 37 mm.
Image Credit: Malcolm Southwood
Exhibit 2. 20 mm field of view.
Exhibit 2. 20 mm field of view.
Image Credit: Malcolm Southwood
Exhibit 3. Malachite after azurite (w. cerussite); 37 mm.
Exhibit 3. Malachite after azurite (w. cerussite); 37 mm.
Image Credit: Malcolm Southwood
Thumbnail by 1Thumbnail by 2Thumbnail by 3

Specimen Title

Malachite after azurite (w. cerussite)

Associated Minerals

cerussite

Principal Mineral

Malachite

Precursor Mineral

Azurite

Size

Miniature; 37mm

Location in the Mine

First oxidation zone

Provenance

Klein, W.

Collection

MGMH; 111615

Entry Number

Specimen; TSNB741

Associated Minerals

cerussite

Description

A pseudomorph of malachite after azurite. The display surface (Exhibit 1) is studded with gemmy cerussite crystals (to 1.5 mm), pale yellow to slightly pink in colour (Exhibit 2). The reverse of the specimen (Exhibit 3) is partly hollow, with a core of malachite (also pseudomorphous after azurite), surrounded by a zone from which malachite has apparently been dissolved away.


The specimen is from the collection of Wilhelm Klein, production manager at Tsumeb between 1916 and 1939, which dates the specimen to the first oxidation zone.