Large Jersey Bluff Discoidal found in Madison County , Illinois. This piece is made out of a gorgeous piece of pinkish coloured granite/ hardstone. 3 1/4 inches wide and 1 3/4 inches thick. This piece is ex- Dillon Bush Collection. A true gem and at least a G 9- G 10 when Graded. Please ask any questions you may have before making an offer and feel free to ask for more photos if you need to see other angles. Good Luck to All. The item “Jersey Bluff Discoidal found in Madison Co. Illinois made of Pink Granite” is in sale since Sunday, September 18, 2016. This item is in the category “Collectibles\Cultures & Ethnicities\Native American\ US\Pre-1600\Artifacts”. The seller is “topviewantiquesandco” and is located in Delhi, Ontario. This item can be shipped worldwide.