So what is the true specific gravity of gold, is it really 19.3 times heavier than water?  The answer is yes and no depending on what type or kind of gold we are talking about.  For you see pure gold that is 99.9 fine is 19.3 times heavier than water and native gold ( unrefined ) with impurities on average runs 17.5 times heavier than water.  Just thought some of you might like to be confused with a fact so often overlooked.     Ron