Dims: 4.8" x 3.3" x 2.2" (12.2 x 8.4 x 5.6 cm)
Wt: 13.0 oz. (368 g)
Wagholi, Poona, Maharashtra State, India
This specimen consists of a basalt host rock that is partially covered with a crust made up of hundreds of stilbite crystals that range in length from less than 1 millimeter to nearly 0.5" (1.3 cm). Among these white crystals are at least 20 radiating clusters of acicular Cavansite crystals. These clusters range in diameter from 3 or 4 millimeters to about 0.3" (8 mm), and have crystals with lengths that are generally half their diameters. The two largest clusters show substantial damage in the form of crushed and broken crystals, but most are in very good condition. Their color is bright blue and they are translucent, with a pearly luster. There is noticeable damage to the crust of stilbites that are intergrown with the Cavansites, but again, most are in good condition.