Description
Iron chromate is a brownish powder that creates darker colors when added as a colorant to engobes, slips and under glazes. As a colorant, it typically produces grays, by itself. Iron chromate can produce additional colors when mixed with other chemicals, as well, as is detailed below:
Iron chromate + cobalt or magnesium = blacks
Iron chromate + tin = pinks, reds
Iron chromate + zinc = browns