Blue Quartz is one of the rarer colours of Quartz to find, with the blue coloration usually coming from either Dumortierite, Blue Tourmaline inclusions or Magnesio-Riebeckite. Star Blue Quartz was designated the State Gemstone of Alabama in 1990.

Blue Quartz has a gentle and calming energy that eases emotional stress. It can help to enhance communication skills and clarity of expression, aiding effective conveyance of thoughts and feelings. This crystal is said to facilitate emotional healing by releasing negativity and fostering self-acceptance. Linked to the Throat Chakra, it supports honest and authentic self-expression. Blue Quartz stimulates creativity and inspiration, fostering artistic and innovative abilities. It's associated with promoting harmony and peace in oneself and relationships, fostering cooperation and understanding. It's also thought to enhance spiritual connection, intuition, and dream work, potentially accessing insights from higher realms of consciousness and the subconscious mind.