Red Fossil Coral, Indonesia : 2011

Photograph by

Norm Barker

About this image

Macro photograph of a red fossil coral. The best of these kinds of fossils are found in Indonesia and are characterised by these tiny flower-like forms. The original corals were alive in reefs during the Miocene epoch, about 20 million years ago. The spaces left by the living part of the coral were replaced with deposits of agate. The carbonate skeleton of the corals were later dissolved and replaced by silicates, rich in iron and manganese. Specimens found today are cut and polished and have a rich, red colouring. Photographed with a Nikon D700 camera and a Zeiss Luminar 40mm lens. Department of Pathology, Johns Hopkins University, Baltimore, Maryland, U.S.A