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08-19-2009, 05:27 PM
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It is, to an extent.. water(no matter how pure or...
It is, to an extent.. water(no matter how pure or dirty) dissolves the bonding materials of rock over time, this causes small particles to fall out of the main rock face.. This is your sediment,...
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08-19-2009, 03:56 PM
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No surface is "perfectly" smooth. There are...
No surface is "perfectly" smooth. There are always microscopic bumps and pitts. Even glass isn't perfectly smooth(just damn close)
I have polished knives on a leftover piece of 1-3/4" granite...
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