Close-up photography of subjects pertaining to geology and paleontology
(and seashells, too)
Please contact for commercial stock licensing options.
Print on Demand now available here. For more POD options please visit Macrografiks.
All images Copyright Mark Windom
Close up of a cut and polished agate from Morocco; #3445
Artificially created from bismuth through a process of heating and cooling. The iridescent hues of this metal 'crystal' is due to the refraction of light from its oxide surface.