Dims: 2.1" x 1.5" x 1.3" (5.3 x 3.8 x 3.3 cm)
Wt: 5.71 oz. (162.2 g)
Kuse Mine, near Bau, Sarawak, Borneo
This small hand specimen consists of a rather thick layer of botryoidal native Arsenic. The Arsenic is a dark, brown-black coloration and generally shows a dull matte luster, though a few areas show almost a dull metallic one. Close examination of the sides of this crust show that it has an almost compact, fibrous appearance in some areas. This crust covers a pale gray host rock and is in turn covered by a layer of flattened, damaged and heavily intergrown stibnite crystals. On one side of the specimen where the Arsenic and the base rock meet, one can see parts of some very small stibnite sprays that extend into the native metal.