6666 COBALT FREE BLACK MASON STAIN

Chrome Iron Manganese Brown Spinel, an inorganic pigment, is a reaction product of high temperature calcination in which Chromium (III) Oxide, Iron (II & III) Oxide, and Manganese (II & III) Oxide in varying amounts are homogeneously and ionically interdiffused to form a crystalline matrix of spinel Its composition may include the modifier ZnO.