Malachite after azurite

TSNB776
Specimen
Exhibit 1. Malachite after azurite; 160 mm.
Exhibit 1. Malachite after azurite; 160 mm.
Image Credit: Malcolm Southwood

Specimen Title

Malachite after azurite

Principal Mineral

Malachite

Precursor Mineral

Azurite

Size

Cabinet; 160mm

Location in the Mine

First oxidation zone (?)

Collection

MGMH; 133416

Entry Number

Specimen; TSNB776

Description

A radiating spray of sharp, composite, prismatic azurite crystals (to 140 mm), completely replaced by malachite. A little indeterminate (carbonate) matrix adheres at either end of the specimen.


Neither the provenance of this specimen nor its location in the mine are recorded. However, the size and habit of the crystals and the apparently complete replacement are typical of the first oxidation zone although this cannot be confirmed.