hai we all know that the shape can change but the content cannot be changed in mercury (liquid metal) but after the testing on our coin the mercury had changed. there is a bubules foarming and colour of the mercury had changed (this sample is recomended to test in automic labs)it will be given for genune buyer only we also welcome good sponcer. ther is also more than six test completed. for the images of mercury and for more detail contact -09944192555