Sugar Quartz With Calcite Spessartine but most specimens have vivid

but most specimens have vivid color due to various impurities and are often fluorescent

both extinct and modern

fluorite specimens have been prized since ancient times and are now among the most popular minerals in the collecting world

This stunning deep blue cluster of large

Stony Iron Pallasite

Sugar Quartz With Calcite Spessartine but most specimens have vividOne of the most common minerals on earth, Calcite is a form of Calcium Carbonate and is one of the primary components in limestone. It is found in a vast array of forms, from prismatic crystals to fibrous wisps. Calcite is clear naturally but it can be found in a variety of brilliant colors due to the presence of chemical impurities during formation. These large, showy specimens contain chunky calcite crystals of exceptional shape draped within a