Fluorite Chalcedony and other materials all originating

and other materials all originating from the Yindu Mine in Inner Mongolia

see photo for small but visible crack in slab

have a high degree of clarity and cover the majority of the quartz surface

Aquamarine has a hexagonal crystal structure and is highly prismatic

instantly eye catching and distinctive

Fluorite Chalcedony and other materials all originatingFluorite 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