Dims: 2.5 x 1.7 x 1.1" (6.4 x 4.3 x 2.8 cm)
Wt: 1.79 oz. (50.9 g)
Several "sheaves" of slightly radiating Heulandite crystals make up this small hand specimen. The crystals are stacked back-to-back, with several in each sheaf. The largest of these sheaves has dimensions of 0.7 x 0.5 x 0.5" (1.8 x 1.3 x 1.3 cm), and almost all are in excellent condition, as only one or two sheaves are visibly damaged. Their monoclinic bladed form is very good, with well-defined edges and clean faces that possess a bright pearly-to-vitreous luster. All have a pale, rusty-red coloration and are transparent and dimly clear due to various internal fractures and cloudy inclusions. The Heulandites rest on a very thin basalt crust that is coated with a druse of tiny quartz crystals. Part of a thin, stalactitic formation is attached to the cluster, consisting of a very small basalt core and a much thicker crystalline quartz "skin". All of these quartz crystals are in ver good condition, and all are colorless, transparent, and quite clear.