Ilmenite is often used as an accessory mineral, or disp […]
Ilmenite is often used as an accessory mineral, or dispersed in magnetite in basic and ultra-basic rocks into strips, and coexists with enstatite and plagioclase. The pegmatite-type ilmenite is produced in granite pegmatite and coexists with microclinal feldspar, muscovite, quartz and magnetite. Ilmenite is often enriched in alkaline rocks. Due to its stable chemical properties, it can form alluvial sand deposits and coexist with magnetite, rutile, zircon, monazite, etc. It can be distinguished from hematite or magnetite according to crystal shape, streak and weak magnetism. Ilmenite is the most important titanium ore.