5 rose quartz mineral specimens perfect for your rock tumbler. Quartz is the second most abundant mineral in Earth’s continental crust, after feldspar. Rose Quartz Crystal is a crystal that derives its name from its lovely rose pink color. These quartz crystals come in a range of beautiful shades of pink. According to metaphysics, It is known as the ‘love stone’ as the message it emits is a strong vibration of unconditional love, joy, warmth and emotional healing. Once tumbled, they will surely smooth out your love life.