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Jasper, a form of chalcedony,is an opaque, impure variety of silica, usually red, yellow, brown or green in color; and rarely blue. This mineral breaks with a smooth surface, and is used for ornamentation or as a gemstone. It can be highly polished and is used for vases, seals, and at one time for snuff boxes. When the colors are in stripes or bands, it is called striped or banded jasper. (source: Wikipedia) Photo by Michael Marcotte Return to List Back to Michael's Hobbies page Back to Michael Marcotte's HomePage