Stitched macro 'panoramic' of a laguna lace agate from Mexico; agates are a variety of chalcedony (cryptocrystalline quartz) Image #3179 11060 X 4221 pixels (16.95 MB)
Macro photograph of the banding pattern in a Pilbara agate from Western Australia Image #3577 6109 X 4057 pixels
Closeup photograph of the structural detail in a beautiful Brazilian agate Imge #4145 4912 X 7360 pixels (14.64 MB)
