What is oxides in mineralogy ?
Oxides : definition
This subclass of the class "oxides - hydroxides" includes nearly 350 minerals, mainly compounds of metals and metalloids with oxygen. It includes "multiple oxides" which from a strictly chemical point of view should be considered as salts : tantalates, niobates, titanates, uranates and antimoniates.
Oxides are a mineralogical group whose common characteristics are a fairly high density and hardness. They are common accessory minerals of igneous and metamorphic rocks which are found in detrital grains in sedimentary rocks, due to their inalterability.