Rose Quartz is a silicon dioxide crystal. It is a stone of the heart, a Crystal of Unconditional Love - for others, but also and strongly for oneself.
On the physical level it is considered to be very beneficial for the heart as well, and for the blood circulation.
On the psychological level it is dissolving emotional wounds, fears and resentments. It is a great stone to get through deep sorrow. Reawakening the heart to its own innate love, it provides a deep sense of personal fulfillment and contentment, allowing one the capacity to truly give and receive love from others.