Ripple is a real-time gross settlement system (RTGS), currency exchange and remittance network. It is built for enterprise (mostly, transactions between banks) and while it can be used person to person, that really isn't its primary focus. XRP is Ripple's internal token, although the system can run without it. XRP isn't mined like Bitcoin, Ethereum, Litecoin and many other cryptocurrencies. Instead, it was issued at its inception.
The Ripple blockchain isn't open like those of other cryptocurrencies. XRP can be safely stored and kept, and uses cryptography to protect participants, but the nodes it's protecting aren't individuals but "trusted" operators registered in the Ripple network.