I am rubbish at IT prehaps someone can link it after googling it. I have replied in Jarrods gold investment thread but dont want arrsers to miss this, a1 kg gold bar was found allegedly in march 2012 ? in London with tungsten rods inside it. It was onlya few grammes lighter than it should have been which led to the chap cropping it in half to expose the fraud. it is reckoned to be 30% to 40% weight in tungsten instead of gold. is not magnetic, and passed a scan test ? saying it was gold. hope of use, buyer beware.