Dims:1.2x0.6x0.5" (3.0x1.5x1.3 cm)
Wt: 0.5oz. (15g)w/box
The granular surface of this thumbnail specimen is liberally sprinkled with whitish crystals of cristobalite. These tiny crystals show excellent pseudocubic habit. Cristobalite is actually tetragonal in form. Also present on this specimen are tiny rounded nodules of an unknown black mineral.