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Post by Drummond Island Rocks on Dec 10, 2011 20:36:48 GMT -5
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Post by johnjsgems on Dec 10, 2011 22:54:45 GMT -5
Looks pretty glassy for jasper. Maybe a jasp agate? Should tumble OK either way. Check progress after a run through coarse. You should know more by then.
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Post by Drummond Island Rocks on Dec 11, 2011 10:30:18 GMT -5
Thanks, glassy is a good description. A bunch of the small fragments that busted off are pretty sharp and brittle. I googled the material and didnt find much information other then an ebay listing that looked like the same stuff. I'll post more pictures as the tumble moves along.
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peachfront
fully equipped rock polisher
Stones have begun to speak, because an ear is there to hear them.
Member since August 2010
Posts: 1,745
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Post by peachfront on Dec 11, 2011 10:30:26 GMT -5
I have some (subcontinent of India not Native American) Indian material that is a range of fancy jasper, bloodstone, green moss agate, and a few soft spots here and there. Looks very much the same idea as your material. No problem whatsoever in 60/90. Not familiar with your Yellowstone sourced material but I have no reason to believe it wouldn't tumble nicely and get a nice polish on it. It can be flint-knapped by the person with the right touch. You can probably see how that's possible from the way it flakes. I have a stone hand axe, presumably ancient, and also a small arrowhead, modern, made for me in moments, from the same material. It's very versatile.
Forgot to say, I haven't had the need to use plastic pellets when tumbling this material.
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