Amethyst (reverse scepters) with Calcite* (*Calcite is RARE from Bolivia) (ex Rich Kosnar Collection)

Item Description

An attractive small cabinet size piece consisting of fine quality, sharp, gemmy, lustrous, prismatic, purple Amethyst crystals which feature the rarely seen "reverse" scepter habit on the ends of the terminations measuring up to 1.2 cm associated with translucent, white, modified rhombohedra of Calcite and minor underlain "Chlorite" on matrix.  Additionally, there are small bladed blue-grey crystals of BARYTE on this specimen, but they blend in with the Calcite so well, you almost don't notice them until you place the specimen under UV light, and the little Barytes glow a brilliant blue color!  This piece is remarkable for Bolivia as it features a type of crystallization that is virtually unheard of from Bolivia. This is one of the better pieces from the find for quality, aesthetics and overall appeal. Please note that Calcite is a rather rare species from Bolivia, and the Calcite crystals from Bombori are the best examples of Bolivian Calcite crystals that we've seen from the entire country. There are very few of these left, so if you are a Quartz collector, get your hands on one now, as nothing has been seen from this locality in nearly 20 years. From the collection of Richard Kosnar (1946-2007), well-known mineral dealer and collector from Colorado, and the namesake for the phosphate species, Kosnarite.