Ask The Experts—Using classifiers
December 2010 by Chris RalphQ: I would like to know how to use a classifier when I dump my gravel into my sluice box. I would also like to know what sizes classifiers come in. I know that they are in sizes like -3/4. What does the “minus” in the size mean? Thanks for any help you can give me.
Any ore grading 32% silver would contain more than 9,000 ounces of silver per ton and be valued at something in the range of $150,000 per ton. Even a few tons of this type of material would be well worth shipping off to a smelter for treatment.
Q: Are there any mills that handle VMS ore?
Q: What can be done with scheelite? Why does the ICMJ never list tungsten in the metals prices?
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