Bauxite is considered the most important ore of aluminum; it is the primary source from which aluminum is extracted globally. Bauxite ore (Al\(_2\)O\(_3\). xH\(_2\)O) is the major source of aluminium till date which is a mixture of hydrated aluminium oxide.

Both haematite and magnetite are ores of Iron.

Monazite is a phosphate mineral that contains rare earth elements and thorium. It's often found in sand and gravel deposits, and can be red, brown, or green in color.