powdered iron oxide, blue pigment, used in crafts, civil construction, concrete, grout, paints, plastics, rubber, paper and wood

azurite background bloom blue calcite chalcopyrite chemical civil cobalt cobaltocalcite color compound concrete construction copper crafts gem gemstone geological geology grout inorganic iron isolated laboratory macro metal metallic mineral mineralogy mining natural nature nitrate object ore oxide paints paper pigment plastics powder powdered production rock rubber sample semiprecious stone used vibrant wood