Dims: 3.1" x 2.7" x 1.8"(7.9 x 6.9 x 4.6 cm)
Wt: 15.7 oz.(444 g)
The oddest aspect of this cluster of Tennantite crystals is their individual form. These things look like metallic garnets! I believe they occur in a complex form like a deltoid dodecahedron, but they are quite small, somewhat warped, and their edges are indefinite, so I can't really define their form. They are small(a bit larger than 1/8"[3-4 mm] in diameter) and have a dark gray color and metallic luster. They cover a layer of what seems to be both pyrite and chalcopyrite that has a few visible crystals and is over 1"(2.5 cm) thick. Under that is another layer of Tennantite, with only a few crystal faces being definable.