Dims: 0.7" x 0.6" x 0.5" (1.8 x 1.5 x 1.3 cm)
Wt: 4.1 g
Sirena Mine, Guanajuato, Mexico
Many pseudohexagonal platelets are intergrown to make up this Polybasite specimen. All seem to be in good condition, and though it is difficult to be certain due to their intergrowth, I cannot see any obvious damage to the piece. The crystals have good form and measure about 0.3" (0.8 cm) in diameter, maximum. They have a dark gray color and a somewhat dull metallic luster. There are a few tiny prismatic crystals scattered on the Polybasite platelets, but I do not know what they are, and they are too small for me to effectively determine their form. There is also a considerable amount of what appears to be chalcopyrite scattered on the cluster, along with some very tiny, round green globules that I think are made of malachite! I have a feeling that the copper content of these crystals is particularly high. The specimen is affixed inside a domed thimble display box.