Carbonado diamonds are typically pea-sized or larger porous aggregates of many tiny black crystals. Carbonado is a similar opaque microcrystalline form which occurs in shapeless masses. Orting was also a supply town for the coal mining towns Wilkeson and Carbonado. Carbonado, commonly known as black diamond, is the toughest form of natural diamond. The town of Carbonado in Pierce County is served by "Carbonado School District No. 19". South of Carbonado, the road forks and the pavement ends. Near the towns of Buckley and Carbonado, Wilkeson is located at (47.107066, -122.048263). Carbonado School District is a historical school district which started in 1887. Paul Strand, pitcher (6-2), World Champion Boston Braves, born in Carbonado, 1893. Robinson was born in Carbonado in Washington State, the youngest of four children. Carbonado, a form of diamond, is also cryptocrystalline. Carbonado was officially incorporated on September 13, 1948. Carbonado is located at (47.079724, -122.051433). Frank Robinson, founder and CEO of Robinson Helicopters was born in Carbonado in 1930. Isotope studies have yielded further clues to carbonado origin.