Dims: 4.7" x 3.1" x 3.1" (11.9 x 7.9 x 7.9 cm)
Wt: 2 lbs., 6.8 oz. (1.101 kg)
Cananaea, Sonora, Mexico
These are the largest Pyrite crystals that I have seen from a Mexican locality. This specimen consists of a cluster of Pyrite cubes that reach dimensions up to 2.7 x 1.7 x 1.5" (6.9 x 4.3 x 3.8 cm). The cluster is in generally good condition, though the larger crystals tend to show substantial damage or are not quite complete. They have excellent cubic form, though, with clean faces and sharp edges. The crystals have the standard pale-gold color and metallic luster of Pyrite, and are accompanied by a substantial amount of what appears to be heavily-weathered galena. The galena does not show any noticeable damage and occurs as rounded gray blobs that measure less than 3 mm in diameter and have a matte luster. There are also patches of weathered, rusty calcite and fibrous actinolite needles.