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Posted in response to polishing petrified wood from Tom on June 14, 2013 at 06:15:54:

Re: polishing petrified wood

Hi Tom

To start with I have tumbles and cut cabochon from petrified wood. So using a hand grinder should not be to different from cutting a cabochon. You would want to start with 80 grit silicon carbide and work war trough 120, 240, 400, and 600 silicon carbide. For a polish cerium oxide works great on a thick shag carpet (wool works best). One further tip if you can grind the piece petrified wood just slightly convex it is easier to work than dead flat.

Hope this helps
Bob

From Bob Place - June 17, 2013 at 00:45:22
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