At a granular level, rocks are composed of grains of minerals, which, in turn, are homogeneous solids formed from a chemical compound that is arranged in an orderly manner. The aggregate minerals forming the rock are held together by chemical bonds.he types and abundance of minerals in a rock are determined by the manner in which the rock was formed. Many rocks contain silica (SiO 2); a compound of silicon and oxygen that forms 74.3% of the Earth's crust.
Tustin station. (Redirected from Tustin (Metrolink station)) Tustin is a Metrolink train station in Tustin, Orange County, California, United States. The station is located in a shopping plaza at the intersection of Jamboree Road and Edinger Avenue. Between October 2010 and September 2011, the parking lot was closed to all cars to facilitate the construction of a five-level, 733-space parking structure.
Map of Irvine. Conveniently located in the center of Orange County, California, Irvine is just 45 miles south of Los Angeles and 90 miles north of San Diego. Within a 20-minute drive, visitors can enjoy Orange County's famous beaches and popular attractions.