List Table of Specific Gravity of Minerals - 911 MetallurgistMar 17, 2017 . This table of various minerals (ore, rock types) listed by their tested SG specific gravity complements the BWi List found in earlier post. . Chrome ore. Clay, 2.51, 2.23. Clay calcined, 1.63. Coal, 1.6, 1.4, 1.63. Coke, 1.31, 1.5, 1.31, 1.31. Coke Petroleum, 1.7. Copper - nickel ore . Gold ore, 2.81, 2.9, 2.81.spesific gravity gold ore,How to Test Gold Using Specific Gravity.Feb 26, 2015 . This video demonstrates how a specific gravity test device can be used to determine the purity of your metals. Get the specific gravity table at the bottom o.