Macro photograph of an agate from Brazil that has been sliced and polished. Agate is a form of quartz known as chalcedony. Image #2298 3200 X 4800 pixels (6.26 MB)
Macro photograph of the patterns in a cut and polished agate from Kumarina, Pilbara Region, Western Australia Image #3213 3030 X 4800 pixels (3.59 MB)
Macro photograph of the patterns in a sliced backlit agate Image #2976 4800 X 3200 pixels
