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I want to ask is it possible for a stone to have some magnetic power different from power that we see in ordinary metal magnets (something like earth gravity that attract everything). Someone told me that he saw a stone that attract other smaller stone but did not attract metals.

Is it practically possible in science?

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Hi Farzad. Welcome to Physics.SE. Your question(s) is (are) quite ambiguous. First, what do you mean by "power" - because power (in physics) is roughly energy per second. Can you rephrase it? (or) Is that what you've asked? – Waffle's Crazy Peanut Apr 18 '13 at 13:59
up vote 1 down vote accepted

This is perhaps explainable through simple magnetism. In as much as the stone to stone attraction is easily seen with two pieces of magnetite, while trying to attract a non magnetic piece of metal would show no effect.

The forces we know of are gravity, electromagnetism, weak nuclear force and strong nuclear force.

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