Dims: 1.3x0.9x0.9" (3.2x2.4x2.3cm)
Wt: 1.35 oz. (38.2g)
Silver Crater Uranium Mine, Bancroft, Ontario, Canada
This dark brown, opaque crystal is betafite, one of the uranium minerals. Note that it is quite radioactive, although it is safer than other uranium minerals that are fibrous or powdery and thus more likely to be inhaled. The crystal is well formed, but is not a pure dodecahedron and is not complete - only 10 faces are visible. Still, it looks rather like a dark brown garnet at first glance. The faces are somewhat weathered, and the bottom of the crystal was broken long before the crystal was mined, judging by its weathered appearance.