Backlighting enhances the structural depth of an agate Image #2750
Macro photograph showing the patterns in a sliced Coyamito agate from Mexico Image #2470
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
