Ilmenite
Origin
Named after Ilmen Mountains in Russia,
James D. Dana: Dana's System of Mineralogy. Volume I, seventh edition, revised by Charles Palache, Harry Berman, and Clifford Frondel. John Wiley & Sons, 1944
Richard V. Gaines, H. Catherine W. Skinner, Eugene E. Foord, Brian Mason, and Abraham Rosenzweig: Dana's new mineralogy, John Wiley & Sons, 1997