How many rock forming minerals make up most of the rocks Earth crust?

Most of the Earth's crust is primarily composed of about 20 rock-forming minerals. Among these, the most abundant are feldspar, quartz, mica, amphibole, and pyroxene. These minerals are essential in the formation of igneous, metamorphic, and sedimentary rocks that constitute the crust. Together, they play a crucial role in the geological processes that shape the Earth's surface.