Ilmenite supplies Fe2O3 and TiO2.
A natural source of titanium and iron, available in either powdered or granular form. Powdered ilmenite may be used as a colorant in glazes, and to seed crystals in titania glazes. Granular ilmenite is sometimes used in small amounts (<1%) to color/speckle clay bodies.
(courtesy of glazy.org)
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