Mysterious Magnetic Stones Found on the Shores of Lake Ontario Canada

A man in Ontario Canada discovered some very unusual and interesting rocks that do not fit the normal parameters of Lodestone or Hematite, there is no reddening of the stone and it is not black but grey.

These stones possess their own magnetic poles and seem to be carved, they are almost as heavy as solid iron and don’t have characteristics of what would be found in nature.

Where could these stones have come from?