Ilmentite FeTiO3, an iron titanium oxide mineral, is is the primary ore of titanium.
It has a black/grey reflective appearance, but is a main source of global TiO2, a powder well-known for its whitening properties.
The obtained titanium can be alloyed in small amounts to other metals to create much stronger, more light-weight, and longer lasting alloys.

Additional Notes:
* See titantium dioxide

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