When I was a child this rock fell from the sky with a swoosh and a bang leaving a trail of smoke behind it. it was hot at first. It appears to be chalcopyrite/bornite, is not magnetic and weighs 46g. Its blue/green with traces of gold and purple. it fell in England but found a news story of a man is the US with a near identical rock that he said he thought fell from the sky although it has been dismissed as 'more than likely terrestrial peacock copper ore' http://meteorite-identification.com/mwnews/06212006a.htm. Does bornite form in volcano's and could this have been flung into orbit by an eruption?