Normal crypto-coins are a code-based resource designed to be used as an apparatus of exchange. coins are added by mining. Any person is able to participate if they've access to a computer. Mining requires a large amount of hours and electrical power, though. A fast machine is also required, to do this effectively. However, XRP is a centralised resource, which is unmineable. A limited number of tokens were made by the firm and this amount will not be added to.