Here is a link about magnetic Earth minerals:<b...

(Reply to "MECA-OM Images")

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Posts: 351

Reply: 49

Posted: July 5, 2008 11:52 PM

Here is a link about magnetic Earth minerals: http://mineral.galleries.com/minerals/property/magnetis.htm Shards and slices of magnetite are the most magnetic of earth rocks and were used in primitive compasses.

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