gold leaf and gold ore

49ers alloys bedrock bullion buttery buy cake carat clear coins container core covets cross crust decor decoration earth economic economy element eureka exchange flakes fluid fools geologic geology glass gold holding hydrothermal intrusion jewelry karat knox leaf limited lithosphere magmatic magnifying malleable metal mineral mining monetary money native natural non nugget ore oxidation oxidize pick pressure pyrite renewable resource rush sample science section sell shiny soft specie standard supersaturated system temperature treasury unit veins wars water yellow