Hand polished and hand shaped gold and silver ore with a small trace of copper.1880s Ore Knob Copper Mine specimen with semi-precious black gemstone copper replacement crystals embedded in the golden color quartz precious metal ore. Elongated tapered oval shape that to a silky-smooth gloss hand polished finish with no coatings. Historic registered Noth Carolina deep earth filled and nonproducing mine shaft specimen that no longer exists. Mine information can be found online. 2-1/2 inches x 5/8-inch x 7/8-inch. 1-3/4 ounces, just under 2 ounces or approximately 47 grams. in weight.  Acid test nitric and muriatic combined testing acids of silver, golds and platinum, random edge filing from a slab of this same specimen which is also currently listed listing. Last acid test image shows a streak from a gold and silver spot on edge, you can see the silver melt with gold streaks remaining in 14K gold testing acid, a little float due to silver content. Shipping options are available. Rare deep golden orange quartz with black chrysocolla (copper replacement crystal areas dendritic patterning with gold and silver in the areas is quite striking in appearance. Recent hand shaped pendant or display from a ore brought to the surface in the 1800s, an early US deep earth mined ore.  Large jewelry pendant setting or display. Setting options are available on my carved, polished shapes. Setting options available upon request, gift boxed.