From the Barlow Collection, this specimen features two very large, super-sharp crystals that are intergrown very attractively at a right angle. Nice golden metallic luster. Probably the best example in the auctions to date of isolated, large, well-defined crystals. There are a couple of incomplete crystals on the back, although you can't see them easily from the frontal display view as shown. Barlow was one of the big funders of the mining of these chalcocites, and this was one of his personal pieces. 4.5 x 3.3 x 3.3 cm