A nother way to study the solar system is to actually go there on a trip called a crewed mission. A space shuttle can bring astronauts and their tools into space to perform experiments, launch satellites, and make observations.
by far the largest chemical group This group of minerals contains SiO44- as the dominant polyanion. In these minerals the Si4+ cation is always surrounded by 4 oxygens in the form of a tetrahedron. Because Si and O are the most abundant elements in the Earth, this is the largest group of minerals and is divided into subgroups based on the degree of polymerization of the SiO4 tetrahedra. rock-forming minerals
The Silicates are the largest, the most interesting, and the most complicated class of minerals by far. Approximately 30% of all minerals are silicates and some geologists estimate that 90% of the Earth's crust is made up of silicates.With oxygen and silicon the two most abundant elements in the earth's crust, the abundance of silicates is no real surprise.pproximately 30% of all minerals are silicates and some geologists estimate that 90% of the Earth's crust is made up of silicates. With oxygen and silicon the two most abundant elements in the earth's crust, the abundance of silicates is no real surprise.