Dims: 2.3" x 1.7" x 1.5"(5.8 x 4.3 x 3.8 cm)
Wt: 7.89 oz.(223.9 g)
Sweetwater Mine, Reynolds County, Missouri, U.S.A.
This specimen is dominated by an oblong pair of interpenetrating Galena crystals. They have the dark gray color, metallic luster and complete opacity of the mineral. Only a few shallow angles between separate faces betray the intergrowths of the 2 cubic crystals. The "unit" that they create measures roughly 1.6 x 1.2 x 1.0"(4.1 x 3.0 x 2.5 cm). It is attached to a small amount of dirty dolomitic host rock that is coated with dolomite crystals in one area and smaller, cleaved Galena crystals in another. These smaller Galenas are in turn coated with a crystalline, almost botryoidal chalcopyrite crust.