Minerals that contain oxygen and silicon are called silicates. They make up the vast majority of Earth's crust and mantle, and are incredibly diverse.

Here are some common examples:

Major Silicate Mineral Groups:

* Feldspars: The most abundant group of minerals, containing aluminum, sodium, calcium, potassium, and sometimes barium.

* Orthoclase (KAlSi3O8)

* Albite (NaAlSi3O8)

* Anorthite (CaAl2Si2O8)

* Quartz: A pure silica mineral (SiO2) found in many varieties.

* Micas: Sheet-like minerals containing potassium, magnesium, iron, and aluminum.

* Muscovite (KAl2(AlSi3O10)(OH)2)

* Biotite (K(Mg,Fe)3AlSi3O10(OH)2)

* Amphiboles: Chain-structured minerals containing magnesium, iron, calcium, sodium, and aluminum.

* Hornblende (Ca2(Mg,Fe)4Al(Si7Al)O22(OH)2)

* Pyroxenes: Chain-structured minerals containing magnesium, iron, calcium, and sodium.

* Augite (Ca(Mg,Fe,Al)(Si,Al)2O6)

* Olivine: An important mineral in the Earth's mantle, containing magnesium and iron.

* Forsterite (Mg2SiO4)

* Fayalite (Fe2SiO4)

Other Silicates:

* Garnet: A group of minerals with various compositions, including aluminum, magnesium, iron, calcium, manganese, and chromium.

* Tourmaline: A complex mineral containing boron, aluminum, magnesium, iron, and lithium.

* Clay Minerals: Very fine-grained silicates, important components of soil and sedimentary rocks.

Note: There are many other types of silicate minerals, each with its own unique composition and structure.

The diversity of silicates is due to the ability of silicon and oxygen to bond in complex ways. This allows for a wide range of compositions and structures, leading to the vast array of silicate minerals found on Earth.