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Introduction Ore Processing Fire Assaying

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  1. Prepare "dirty water" by filling the two bottles 1/8 full of finely ground soil. The exact measurement need not be precise, but the two bottles should have the same amount of soil in them. Fill the bottles to within 3 centimeters of the top with tap water. Be sure the lid on tight. Shake the bottles to be sure all of the dirt is wet and mixed.
Two bottles with about equal amounts of dirt. The bottle on the left is the control; the one on the right is the test bottle. Adding water to both bottles to the same level, here about two inches from the top
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