ferrous oxide

Amused and enchanted, I named him "Ferrous" for the chemical name of rust, hydrated ferrous oxide.

Lawrence Weiner’s “Cadmium & Mud & Titanium & Lead & Ferrous Oxide & So On …” was first displayed as part of his solo exhibition “Displacement,” at Dia Center for the Arts in New York City in 1991.

Staurolite, stawr′ō-līt, n. a silicate of alumina with ferrous oxide, magnesia, and water, crystallising in trimetric forms, common as twinned cruciform crystals in certain states.—adj.

Ferrous oxide is the usual cause of discoloration.

Ferrous oxide produces an olive green or a pale blue according to the glass with which it is mixed.