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18th July 2007, 05:21 PM
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#6 |
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Member
Join Date: Dec 2004
Posts: 987
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It looks like an ingot to me. They can be mixed up with milling balls, which are used to crush ore, but I think those are round.
Ann Feuerbach or Ric Furrer are the authorities on this stuff. Paging Drs. Feuerbach & Furrer ... 
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