Synthetic Red Iron Oxide (high purity 325 mesh) - Brackers Good

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Bracker's Good Earth Clays provides clay and other ceramic materials, equipment, tools, and toys to potters and sculptors in Kansas, Missouri, Nebraska, Iowa, Arkansas, Oklahoma, Illinois and beyond. In Lawrence Kansas since 1982.
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Iron oxides are chemical compounds composed of iron and oxygen. Oxides (clay containing ferric oxide) are extracted from quarries. Iron Oxides yield

Iron Oxide Powder 7 Pack , Cosmetic Grade Pigment, Black Iron Oxide, Yellow Iron Oxide, red Iron Oxide, Blue Iron Oxide, Green Iron Oxide, Orange Iron