The most common minerals found in igneous rocks are feldspar and quartz, both being silicate minerals. Silicates are key components of Earth's crust, with silica tetrahedra forming the structure of these minerals.
Feldspar is commonly found in igneous rocks. It is a group of rock-forming tectosilicate minerals that make up about 50% of the Earth's crust. Feldspars are present in rocks like granite, rhyolite, and basalt, as well as metamorphic rocks and detrital sedimentary rocks.
Another common mineral found in igneous rocks is quartz, which is known for its resistance to weathering and abundance in detrital sedimentary rocks. Silicates, such as feldspar and quartz, are prevalent in igneous rock compositions, along with minerals like mica, amphibole, pyroxene, and olivine.
The vast majority of minerals in Earth's crust are silicate minerals, including popular ones like quartz, feldspar, mica, and others. These minerals are characterized by silica tetrahedra forming their structure, making up a significant portion of the planet's geological composition.
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