Chalcedony Jasper cut and polished in Scotland. Jasper, a form of chalcedony, is an opaque, impure variety of silica, usually red, yellow, brown or green in color, and rarely blue. The common red colour is due to Jasper.

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Chalcedony Jasper cut and polished in Scotland. Jasper, a form of chalcedony, is an opaque, impure variety of silica, usually red, yellow, brown or green in color, and rarely blue. The common red colour is due to Jasper.

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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: archival, archive, blue, brown, chalcedony, cut, geology, green, historical, history, impure, jasper, opaque, polished, precious-stones, red, scotland, silica, variety, yellow