macro stone mineral korundofillit, clinochlore, corundum on a white background

aggregate almandine andradite background bixbyite bronze chalcopyrite chlorite clinochlore copper corundum crystal crystalline earth garnet gem gemology geology hessonite hydrothermal iridescent isolated jewelry korundofillit macro metal metallic mineral mineralogy mining natural nature nugget ore precious raw rock rough sample samples science serafinite silica silicate silver stone sulfide vanadinite white