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.
Irvine is an area in Irvine, Orange County, California with a population of 216,468. There are 105,324 male residents living in Irvine and 111,143 female residents. The total number of households is 79,851 with 2.62 people per household on average. Total household expenditures in Irvine are above the national average. The median age of the current population is 33.52 with 69,733 people being married and 72,977 being single. The employment numbers show that there are 72% white collar employees and 28% blue collar employees in Irvine.