Dioptase (on calcite)

TSNB730
Specimen
Exhibit 1. Dioptase (on calcite); 43 mm.
Exhibit 1. Dioptase (on calcite); 43 mm.
Image Credit: Malcolm Southwood
Exhibit 2. Dioptase (on calcite); 43 mm.
Exhibit 2. Dioptase (on calcite); 43 mm.
Image Credit: Malcolm Southwood
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Specimen Title

Dioptase (on calcite)

Associated Minerals

calcite

Principal Mineral

Dioptase

Size

Miniature; 43mm

Location in the Mine

Second oxidation zone

Collection

MGMH; 109214

Entry Number

Specimen; TSNB730

Associated Minerals

calcite

Description

Dioptase crystals (to 5 mm) selectively encrusting parts of a loose intergrowth of colourless calcite rhombs (to 20 mm).

Neither the source of this specimen nor its location in the mine are recorded. The habit and paragenesis, however, are definitive for the second oxidation zone.