The Probert Encyclopaedia of Rocks & Minerals

ILMENITE

Ilmenite or titaniferous iron oxide is an iron-black or steel-grey coloured common rock-forming mineral which is chiefly found in small crystals in basic igneous rocks and schists, consisting chiefly of the oxides of iron and titanium. It has weak magnetism and a relative hardness of six. It is the major ore of titanium. It is also known as menaccanite after Menaccan, in Cornwall, where it was first found.
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