Well, I am not sure what black butter dacite is, so don't know. I do want to get back down there sometime this summer at Glass Buttes or maybe Riley. The gold sheen sure is pretty, but it was hard to work clean - without ledges. Thanks for the tips Tiller. I thought I was trying to support things. I think I hit that big blade towards the back on the side, when the tip broke off. I remember how many arrowheads I used to break in half two years ago, but then things gradually got better. I picked up some nice black obsidian just south of Riley once. We named our young mustang gelding , "Riley". I also named my little palomino mustang mare "Sheena", because she had such shiny golden hair. ---- Allen