dolomite after wulfenite

TSNB669
Specimen
Feinglos, M.N.Graeber, C.
Exhibit 1. Dolomite after wulfenite; 41 mm.
Exhibit 1. Dolomite after wulfenite; 41 mm.
Image Credit: Malcolm Southwood
Exhibit 2. Dolomite after wulfenite; 41 mm.
Exhibit 2. Dolomite after wulfenite; 41 mm.
Image Credit: Malcolm Southwood
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Specimen Title

dolomite after wulfenite

Associated Minerals

goethite (?)

Principal Mineral

Dolomite

Precursor Mineral

Wulfenite

Size

Miniature; 41mm

Provenance

Graeber, C.; Feinglos, M.N.

Collection

MGMH; 2022.4.8699

Entry Number

Specimen; TSNB669

Description

Loosely intergrown, free-standing tabular wulfenite crystals (to 14 mm on edge), lightly coated with dark brown goethite (?) (Exhibit 2) and partly encrusted with a nodular layer of finely crystallised white dolomite, forming a partial encrustation pseudomorph on a siliceous matrix.

Mark Feinglos acquired this specimen from Cal Graeber in April 2004. The location in the mine is not recorded.