Quartz has been used for millennia — not just as jewelry but as a healing tool, believed to create beneficial energy for the body.
Different varieties serve different purposes: Citrine (yellow quartz) supports focus and learning. Purple quartz facilitates meditation. Black quartz addresses blood pressure. Rose quartz supports emotional balance. White quartz benefits kidney health. Smoky quartz reduces stress and anxiety.
These effects have reportedly been demonstrated scientifically — though many benefits require personal experience to fully appreciate.