Safeopedia explains Coal Washing. Coal is a type of sedimentary rock that is formed by buried vegetation that is transformed by pressure and heat over long periods of time. Coal will eventually turn into diamond formations with enough time, pressure and heat. Impurities include slate and other non-organic rocks etc..
The number of presidents born per state are: 1  One: Arkansas, California, Connecticut, Georgia, Hawaii, Illinois, Iowa, Kentucky, Missouri, Nebraska, New Hampshire, New Jersey, Pennsylvania, and South Carolina. 2  Two: North Carolina, Texas, and Vermont.  Four: Massachusetts, and New York.
James Monroe. The United States of America has had a fair share of Presidents, all remembered in their own ways. But there are several who are remembered as brave, bold, and strong-willed. One of them is the fifth President of the United States, James Monroe. Monroe was the last of the Founding Fathers of the United States. His life, both personal and as a public servant, were marked by twists of fate that served as a platform for the manâs audacity.