Fossil and rock "picking" and identification. Making "paint" from hematite and limonite.

We will be bringing in gravel from a location with a lot of silicified fossil. People can look through the gravel and keep what they find. The gravel is not "spiked" so we only have a general idea what will be found. Small geodes, Coral fossils ( colony and horn), brachiopods (perfect camarotoechia), sea urchin parts (spines/spine plates/interambulacral plates), infrequent blastoids and bellerophon. I will have a guide sheets to give out to help identify what we typically find. Event is 11am-4pm...CST