Origin of ilmenite
Examples from the Web for ilmenite
Historical Examples of ilmenite
Ilmenite has a black streak; it is opaque, but in very thin scales sometimes transparent with a clove-brown colour.
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.
Among the accessory minerals may be mentioned apatite, magnetite, ilmenite, picotite and garnet.
Ilmenite has sometimes been mistaken in the South African mines for carbonado.