Depends entirely on the composition of the rock itself. If there is little metal content or water then nothing will happen, the same as a ceramic dish for example. A pourus rock with water content may actually warm up and a rock with high concentrations of conductive metals may cause sparking. Try it and see, it's called scientific experimentation.
WHAT IS THE EXPECTATION ON THE SUBJECT NSTP AND TO THE INSTRUCTOR AND CLASSMATE?
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When two pieces of cui or other unclassified information are posted online together?
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