

Using my archive of images from my January trip to South Carolina, I'm reducing a number of them to strong contrasts, possibly to use in future prints on steel.
An exploration of where crinoids, oil and arts meet
A man named Blumer discovered a remarkable group of organic pigments (fringelites) in purple to violet coloured specimens of the Jurassic crinoid ‘Millericrinus’ (=Liliocrinus) from northern Switzerland. These pigments are also accompanied by several polycyclic aromatic hydrocarbons, which were proposed as transformation products of the pigments .
http://rspb.royalsocietypublishing.org/content/273/1585/451.full