The most common mineral group is the silicates group, which comprises about 90% of the Earths crust. Silicates are by far the largest mineral group, with about 1,000 known silicate minerals/03%3A_Minerals/3.05%3A_Minerals_and_Mineral_Groups). The two most common silicate minerals are feldspar and quartz/03%3A_Minerals/3.05%3A_Minerals_and_Mineral_Groups). Carbonates, sulfates, halides, and oxides are other mineral groups that make up the remaining 10% of the Earths crust. Feldspars are the most abundant mineral group on Earth and make up nearly 60% of the Earths crust.