Dims:1.3x0.7x0.6" (3.3x1.8x1.5 cm)
Wt: 0.9oz. (24g)
The top surface of this specimen is sprinkled with minute crystals of cristobalite. Under a loupe these crystals appear to be in the form of trapezohedrons, although the true form is tetragonal. It is possible, for cristobalite is known to assume a pseudocubic habit. I cannot be sure of the shape, however, for the crystals are too tiny to examine closely.