Kyanite Mining Corporation grows, meets demand for quality refractories by Charles Steels, 1983, Pit and Quarry, April 1983 Substitution of topaz, domestic kyanite, and synthetic mullite-corundum for India kyanite, I-III by N. McVay and Hewitt Wilson, 1943, The Journal of The American Ceramic Society, Volume 26, No. 8, p. 252-264