This is a pink and black love stone. Black releases obstacles, and blockages to attracting love. It clears negativity in existent relationships. Rhodonite is grounding so it can stabilize ongoing relationships.
Hexagonal shaped crystals are used for protection and cleansing. It symbolizes strength, protection, and helps balance opposing forces. 
It can Also be used as a pendulum. Which assists with finding answers in a ritual called pendulum dowsing.