vanackerite (w. thometzekite)

TSNB532

Specimen

Exhibit 1. Vanackerite (w. thometzekite); 33 mm.
Exhibit 1. Vanackerite (w. thometzekite); 33 mm.
Image Credit: Malcolm Southwood
Exhibit 2. Specimen label (John Innes).
Exhibit 2. Specimen label (John Innes).
Image Credit: Malcolm Southwood
Exhibit 3. Specimen label (Bill Pinch).
Exhibit 3. Specimen label (Bill Pinch).
Image Credit: Malcolm Southwood
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Title

vanackerite (w. thometzekite)

Principal Mineral

Vanackerite

Size

Miniature; 33mm

Location in the Mine

Second oxidation zone; 35 Level; North East Stope

Collection

MGMH 2020.7.756

Collected by

John innes; 1980

Provenance

Innes, J.; Gartrell, B.; Pinch, W.W.

Entry Type

Specimen TSNB532

Description

Pseudo-hexagonal, tabular crystals (to 3 mm diameter) of pale yellow to tan-coloured vanackerite, with pale spearmint-green thometzekite, on massive sulphide. 

The specimen was collected by Tsumeb Corporation Limited mineralogist John Innes in 1980, from the North East Stope on 35 Level, deep in the second oxidation zone. Innes' label (Exhibit 2) identifies the pseudo-hexagonal crystals as "Mimetite ?" and the associated pale green mineral as "Mineral TQ", a working name for what would later be described as thometzekite (Schmetzer et al. 1985). 

The specimen was subsequently in the collections of Blair Gartrell and Bill Pinch (Exhibit 3).

Vanackerite (IMA2011-114) was described as a new mineral by Schlüter et al. (2016).

Associated Minerals

thometzekite