Thanks for all the information guys. Had a chance to go back. Found on the surface and OP base and half a neck from a big demi john which had a very sloppy applied top. The bottle is soaking to get the last bit of schmutz out of the inside, which I hope will let me take a better photo of the color for you. In the mean time, here is a photo I shot from the top down showing the color pretty well I think.
Wow. People dig and dive their whole lives and don't find anything that intense. Hope you keep it and that your soul gets sucked into this disease. Its a good one.