adamite (w. smithsonite and tsumcorite)

TSNB432

Specimen

Exhibit 1. Adamite (w. smithsonite and tsumcorite); 65 mm.
Exhibit 1. Adamite (w. smithsonite and tsumcorite); 65 mm.
Image Credit: Mariusz Olesczuk
Exhibit 2. Specimen label (Keith Hammond).
Exhibit 2. Specimen label (Keith Hammond).
Image Credit: Mariusz Oleszczuk
Exhibit 3. Specimen label (Richard Barstow).
Exhibit 3. Specimen label (Richard Barstow).
Image Credit: Mariusz Oleszczuk
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Title

adamite (w. smithsonite and tsumcorite)

Principal Mineral

Adamite

Size

Cabinet; 65mm

Location in the Mine

Second oxidation zone (?)

Collection

Oleszczuk, M. ADM23

Provenance

Barstow, R.W.; Hammond, K.P.

Entry Type

Specimen TSNB432

Description

Tabular crystals (to 9 mm) of lustrous, highly translucent yellow adamite (XRD confirmed), resting on elongated, composite sheaf-like crystals of colourless-white smithsonite which has crystallised on a rind of yellow tsumcorite over a chalcocite-rich sulphide matrix.

The location in the mine from which the specimen was recovered is not recorded, but the paragenesis indicates that it is probably from the second oxidation zone. The specimen was formerly in the collections of Keith Hammond (U.K.; Exhibit 2) and Richard Barstow (U.K.) and it is accompanied by a Barstow white label (Exhibit 3).

Associated Minerals

smithsonite; tsumcorite