Mineralogy
Minerals are mainly oxides and sulfides, which are strictly inorganic, although they may be of biological origin. In fact, most of the earth - and the rest of the universe - is inorganic. Although the components of Earth's crust are well-elucidated, the processes of mineralization and the composition of the deep mantle remain active areas of investigation, which are covered mainly in geology-oriented venues.
Read more about this topic: Inorganic Compound