Tourmaline
This crystal is found in a variety of colours, the most common being black. Tourmaline is believed to promote inspiration and happiness, reduce fear, and build self-confidence among its users. It's also used to balance yin-yang energies, as it's considered a physical bridge to the spiritual. Pink tourmaline with its strong, loving energies is a go-to for emotional, 'heart' pain and dissolving negative feelings that can upset relationships.