Due to things that suck I didn't get to the Flint Ridge knapp-inn this year, So I looked through my box of Roy Miller rock and found this knapping challenge. it had different grains, crystals ,cracks and humps and real cool colors. What more could you ask for. After awhile it looked like it might work out and low and behold it ended up a nice little button base dovetail. now if I could get a couple hundred folks screaming "Oogga Boogga" all nite my weekend would be complete.