Origin of ilmenite
Examples from the Web for ilmenite
The principal titanium minerals are rutile (titanium oxide) and ilmenite (iron titanate).
Rutile and ilmenite both have high specific gravity and are little affected by weathering.
Ilmenite has sometimes been mistaken in the South African mines for carbonado.
Among the accessory minerals may be mentioned apatite, magnetite, ilmenite, picotite and garnet.