Buy Natural Loose Gem Silica Gemstones at AJS Gems
The rarest and most expensive variety in the quartz family is a type of chalecedony known in the trade as gem silica. Colored a vivid greenishblue by copper, this material is found in the USA, Taiwan and Peru. How much is gem silica worth? The value of natural gem silica can vary greatly depending on the size and quality of the gemstone.