What is the main chemical composition of granite

The deep-formed acidic igneous rock of granite is commonly known as granite. The silica content is more than 70%. The color is lighter off-white and flesh red. It is mainly composed of dark minerals such as quartz, feldspar and a small amount of biotite. The quartz content is 20%-40% alkaline. Feldspar is more than plagioclase, which accounts for about 2/3 of the total feldspar. Alkaline feldspar and albite plagioclase are mainly albite and albite. The dark mineral biotite mainly contains a small amount of hornblende. Stones with granite structure or porphyritic structure can be divided into biotite granite, muscovite granite, hornblende granite, dimica granite, etc. according to the type of mineral contained; according to the structure and structure, they are divided into fine-grained granite, granular granite, coarse-grained granite, porphyritic granite, Porphyritic granite, geode granite and gneissic granite, etc.; according to the accessory minerals, it is divided into cassiterite-bearing granite, niobite-bearing granite, beryllium-bearing granite, lepidolite granite, tourmaline granite, etc. There are many types of self-metamorphic granites, such as petrochemicals and tourmaline. There are many types of rock bases, rock strains, rock clocks, etc., and the granite granite in the deep crust of granite is crystallized by condensation or basaltic magma. It is also believed that the granitization caused by deep metamorphism and metasomatism results in many non-ferrous metal minerals such as copper, lead, zinc, tungsten, tin, bismuth, molybdenum and other precious metals such as gold, silver and other rare metals such as niobium, tantalum, and beryllium. Uranium, thorium, etc. are related to granite. The structure of granite is uniform, hard, and beautiful in color. High-quality building stone