fluorite specimens have been prized since ancient times and are now among the most popular minerals in the collecting world
The effect of this is a remarkable shimmer of gold shining through the blue facets of the fluorite
some with highlights of purple or blue around the outer edges
Calcite is clear naturally but it can be found in a variety of brilliant colors due to the presence of chemical impurities during formation
Creedite is sought after for its unique fine crystalline structure
Fluorite Opal fluorite specimens have been prizedFluorite is one of the most variable of all crystalline minerals, occurring in shades of blue, green, purple, red and many other colors corresponding to their physical makeup and conditions when the mineral was formed. The name fluorite comes from its use as a flux, or chemical cleaning agent, in iron smelting and other metallurgy. Pure fluorite is clear, but most specimens have vivid color due to various impurities and are often fluorescent. With a