Dims: 1.46x0.91x0.55" (3.7x2.3x1.4cm)
Wt: 0.32oz. (9.1g)
Fresnillo, Zacatecas, Mexico
While this specimen is mostly acanthite by weight, the best crystals are stephanite, and there are numerous crystals of polybasite-pearceite. The stephanite crystals are relatively large, are well (although complexly) shaped, and are black in color. These crystals also present well, as they are close to the extremities of the specimen. The polybasite/pearceite crystals are relatively small, and have strong striations. The acanthite is lighter in color, provides the structure of this specimen, and the crystals tend to be distorted, although there are many fine crystal faces.