Dims: 3.4" x 3.4" x 1.8"(8.6 x 8.6 x 4.6 cm)
Wt: 14.7 oz.(416 g)
This specimen is mostly Tennantite by weight. It has the standard dark gray color, metallic luster and opacity of its kind, but the shape confuses me a bit. It is definitely in a form closely related to the tetrahedron, but each of its points are truncated by 3 short, secondary termination faces that "round off" each crystal. The largest discernable crystal that I could find on the piece is about 1/4"(6 mm) along an edge. There are also a small number of chalcopyrite crystals scattered among the Tennantites. There is substantial damage to the crystals, but I believe most of this occurred when the specimen was being taken from its native environment, as it occurs primarily along the specimen's edges.