Dims: 2.7" x 1.6" x 0.5"(6.9 x 4.1 x 1.3 cm)
Wt: 2.58 oz.(73.1 g) w/ base
Thompson Open Pit, Thompson, Manitoba, Canada
This specimen, composed almost entirely of Millerite, consists of a crust that is made up of thousands of tiny needle-like crystals of the material. There is very little damage to the specimen, so it looks like there are beds of brassy, metallic moss on both sides of it. The edges of the specimen are the only points of breakage, and show where the specimen was separated from its place of origin. Examination of this edge shows the Millerite's radial habit and allows one to see that some of the crystals are close to 0.3"(8 mm) long, though only about 0.1"(2 mm) of their tips are visible. They have a dark, brassy color, a metallic luster, and are opaque. There are a few small, broken shards of what appear to be quartz on one side of the specimen, which also seems to show some massive Millerite, but it could be another metallic sulfide. The specimen is glued upright onto a square acrylic base so that both sides can be seen easily.