Dolomite

TSNB729
Specimen
Exhibit 1. Dolomite; 117 mm.
Exhibit 1. Dolomite; 117 mm.
Image Credit: Malcolm Southwood
Exhibit 2. 40 mm field of view.
Exhibit 2. 40 mm field of view.
Image Credit: Malcolm Southwood
Exhibit 3. 30 mm field of view.
Exhibit 3. 30 mm field of view.
Image Credit: Malcolm Southwood
Thumbnail by 1Thumbnail by 2Thumbnail by 3

Specimen Title

Dolomite

Associated Minerals

arsentsumebite (?); goethite; malachite; quartz

Principal Mineral

Dolomite

Size

Cabinet; 117mm

Location in the Mine

Undetermined

Collection

MGMH; 108961

Entry Number

Specimen; TSNB729

Associated Minerals

arsentsumebite (?); goethite; malachite; quartz

Description

A matrix consisting largely of silicified dolostone and orange-brown gossan hosts a wide, shallow vug encrusted with sugary pale pink dolomite (individual crystals to circa 0.5 mm). A few irregular inclusions (to 12 mm) of earthy pale green arsentsumebite (?) are present in the dolomite (Exhibit 2), and there is a little malachite close to the junction between the dolomite and the gossanous portion of the matrix (Exhibit 3).


Unfortunately, there is no recorded provenance for this specimen and its location in the mine is undetermined.