What are the main mineral classes?

Silicates (contain SiO44-) - most important rock-forming minerals, comprise >90% of minerals in crust, many subclasses based on different crystal structures, largest class with ~800 minerals. Halides (contain Cl-, Br-, I-, and F-) - salts that form by chemical precipitation (dissolved ions in water combine to form solid minerals). Oxides and Hydroxides (cations bonded to O2- or OH-) - e.g., Al- and Fe-oxides and Al- and Fe-hydroxides (e.g., hematite, corundum). Carbonates (contain carbonate ion, CO32-) - e.g., calcite and dolomite. Sulfates (contain sulfate ion, SO42-, i.e., sulfur in oxidized state, 6+) ¬ e.g., gypsum. Native Elements (pure elements) - includes metals and non-metals (Cu, Au, C ¬ diamond), only ~20 minerals. Sulfides (contain sulfide ion, S2-, i.e., sulfur in reduced state, 2- or 1-) - contains many economically important minerals, (metallic) cations include Cu, Fe, Zn, Pb, e.g., pyrite, galena. Others (Nitrates, Borates, Chromates, Tungstates, Molybdates, Phosphates, Arsenates, Vanadates