Image Credit: John Schneider
Image Credit: John Schneider
Image Credit: John Schneider
Image Credit: John Schneider
Image Credit: John Schneider
Specimen Title
Betpakdalite-(CaCa)
Associated Minerals
quartz
Principal Mineral
Size
Miniature; 35mm
Location in the Mine
Second oxidation zone; 30 Level; East 9
Provenance
Innes, J.; Gartrell, B.; Pinch, W.W.
Collection
MGMH; 2020.7.2005
Collected by
John Innes; 19 July 1984
Entry Number
Specimen; TSNB398
Description
A crust of pale yellow betpakdalite-(CaCa) on a siliceous sulphide-rich matrix.
The specimen was formerly in the collections of W.W. Pinch, B. Gartrell and Tsumeb Corporation Ltd mineralogist John Innes. A sequence of old labels provides a complete provenance for this specimen (exhibits 2-5), commencing with Innes' handwritten label (Exhibit 2) indicating that he collected it from East 9 on 35 Level in July 1984. The specimen is number JI-536 in the unpublished catalogue of the Innes Collection prepared by Ernie Nickel, and number 11419 in the collection of Blair Gartrell (Westaus Museum; Exhibit 3), who purchased much of the Innes collection after Innes' death in 1993. Pinch purchased the specimen from Rob Sielecki (of Ausrox; Exhibit 4) who dispersed the Gartrell Collection in the mid 1990s. Pinch's label (Exhibit 5) notes that the specimen was studied by A. Kampf, alluding to its inclusion in the landmark study of the heteropolymolybdate faminly of minerals (Kampf et al. 2012).
