Gold in large pockets and silver veins. The silver is a tarnished silver greyed blue and you can see a mix of gold inside the silver spots and a few solid gold spots. Rare limited 1800s Ore Knob Copper Mine, North Carolina, Blue Ridge Mountains, USA specimen.  A registered historical mine that no longer produces. Comes with a photo packing slip with slabs origin. Review photos for details on the size of the precious metals' gold in silver veins. All darker spots are pure raw silver. Mine history details can be found on most search engines. This slab measures 3 7/8" x 3 " x 1".  Measurements are from the longest points. Large amount of metal in this piece, at a deal price. Review photos for details. Photos are taken with flash and natural sunlight. More specimens from the long-closed mine are available currently. The historic mine no longer produces, rare collectable precious metal ore with limited supply.