gold ore texture close-up. contains quartz, mica, feldspar, chlorite, garnet, carbonate, sulfides, gold

allocation alloy background bornite carbonate chlorite closeup crystal feldspar garnet gem gemstone geological geology gold golden industry iron macro material metal metallic mica mine miner mineral mineralogy mining natural nature nugget ore polymetallic precious quartz rare raw resource rock science shaft siberia silica specimen stone sulfide sulfides surface unique