anglesite (w. scorodite)

TSNB667
Specimen
Feinglos, M.N.Sanborn, W.B.
Exhibit 1. Anglesite (w. scorodite); 33 mm.
Exhibit 1. Anglesite (w. scorodite); 33 mm.
Image Credit: Malcolm Southwood
Exhibit 2. Anglesite (w. scorodite); 33 mm.
Exhibit 2. Anglesite (w. scorodite); 33 mm.
Image Credit: Malcolm Southwood
Exhibit 3. 18 mm field of view.
Exhibit 3. 18 mm field of view.
Image Credit: Malcolm Southwood
Exhibit 4. Specimen label (W.B. Sanborn).
Exhibit 4. Specimen label (W.B. Sanborn).
Image Credit: MGMH Archive
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Specimen Title

anglesite (w. scorodite)

Associated Minerals

scorodite; undetermined

Principal Mineral

Anglesite

Size

Miniature; 33mm

Location in the Mine

Second oxidation zone (?)

Provenance

Sanborn, W.B.; Feinglos, M.N.

Collection

MGMH; 2022.4.7934

Entry Number

Specimen; TSNB667

Description

Intergrown crystals (to 25 mm) of striated, colourless-white pseudo-cubic anglesite (Exhibit 1). A single prominent crystal (6 mm) of gemmy, blue (but pleochroic) scorodite is present on the reverse (exhibits 2 and 3) as well as many much smaller microcrystals. Also associated is a crust of undetermined yellow microcrystals – probably a mineral of the tsumcorite group (?).

The specimen is from the Feinglos Collection but, uncharacteristically, Feinglos’s datacard lacks information on the provenance; a William B. Sanborn label (Exhibit 4), however, dates the specimen to pre-1981. While there is no record of location in the mine the paragenesis is strongly indicative of the second oxidation zone.