Normal crypto is a code-based holding built to be employed as an item of trade. Additional crypto-coins may be added by mining. Any person may get involved if they have a a device. Mining requires a lot of time and electrical energy, however. A powerful computer is also required, to do this profitably. Conversely, XRP is a centralised coin, which can't be mined. A fixed supply of tokens were created by the organisation and this amount will not be exceeded.