igneous rock mineralogy PNG, stickers, cliparts, transparent illustration & graphics

650x388px

copper alloy material, bronze mineral specimen, nonferrous metal rock, metallurgical industry resource, natural copper deposit, ancient bronze tool component, igneous rock mineralogy
900x450px

tungsten metal rock, wolframstahl mineral, tungsten carbide crystal, titanium structural robustness, igneous rock mineralogy, metal ore specimen, industrial metal sample