DIY, How can you tell the difference between "fool's gold", pyrite, and real gold! Use a microscope! Gold Vs Pyrite: How To Tell Difference Under Microscope
This is a great way for prospectors to determine what they have in their pay dirt. You could have micro gold, flour gold, platinum, or pyrite flakes. Check with a microscope and you will see the differences that you cannot see while sluicing, panning, or using a blue bowl concentrator.
This video is by Secured Solutions, Diamond Manufacturers.
www.wesecuresolutions.com