Macro photograph of a slab of polished Mookaite jasper from Western Australia. Formed approx. 125 million yrs ago, in part, from the fossilization of microscopic protozoa called radiolaria.; #3760
Macro photograph of a cut and polished Dryhead agate from Montana Image #3361
Macro photograph of the patterns in a Linda Marie plume agate from Oregon; #3368
