Dims: 2.5 x 2.2 x 1.5" (6.4 x 5.5 x 3.8 cm)
Wt: 3.80 oz. (107.9 g)
This hand specimen consists of a cluster of Stilbite "sheaves" that rests adjacent to a single, large calcite crystal. The cluster is made up of about 8 or 9 sheaves that are in excellent condition and reach dimensions of 1.3 x 0.5 x 0.4" (3.3 x 1.3 x 0.9 cm). Each sheaf is made up of many aggregated, platy crystals that have very good monoclinic form. All have a pale pink-orange color that is very faint in the smaller sheaves and a pearly luster, and are translucent. The adjacent calcite has a chubby, slightly warped form and may be twinned. It is colorless, transparent and very clear, though it contains a few internal fractures. A small basalt crust is present, and it is lined with tiny calcite platelets.