Calcite

TSNB649
Specimen
Innes, J.Pinch, W.W.
Exhibit 1. Calcite; 30 mm.
Exhibit 1. Calcite; 30 mm.
Image Credit: Malcolm Southwood
Exhibit 2. Calcite; 30 mm.
Exhibit 2. Calcite; 30 mm.
Image Credit: Malcolm Southwood
Exhibit 3. Calcite; 30 mm.
Exhibit 3. Calcite; 30 mm.
Image Credit: Malcolm Southwood
Exhibit 4. Specimen label (Bill Pinch).
Exhibit 4. Specimen label (Bill Pinch).
Image Credit: MGMH Archive
Exhibit 5. Specimen label (John Innes).
Exhibit 5. Specimen label (John Innes).
Image Credit: MGMH Archive
Thumbnail by 1Thumbnail by 2Thumbnail by 3Thumbnail by 4Thumbnail by 5

Specimen Title

Calcite

Associated Minerals

conichalcite-duftite (?)

Principal Mineral

Calcite

Size

Thumbnail; 30mm

Location in the Mine

Second oxidation zone; 30 Level; West 70

Provenance

Innes, J.; Pinch, W.W.

Collection

MGMH; 2020.7.2007

Collected by

John Innes; 28 July 1983

Entry Number

Specimen; TSNB649

Description

A colourless, water-clear rhombohedral crystal of calcite, 20 mm on edge, on just a small fragment of matrix material. A bevel on one edge of the crystal adds crystallographic interest. There is a little conichalcite-duftite (?) on the matrix which is magnified and refracted by the calcite.



The specimen is from the Bill Pinch Collection (Exhibit 3) and is accompanied by an older label handwritten by John Innes (Exhibit 4), chief mineralogist for TCL in the early 1980s, indicating that he collected it on 28 July 1983 from 30 Level, West 70.