Natural Crystal Bracelets are some of the most common types of crystals on the planet. Although they are called ‘clear quartz’, they range from crystal clear stone through to milky or cloudy, almost opaque crystals. They also occur in a variety of shapes and configurations, although most of them are of a similar hexagonal structure. The dominant mineral in this stone is silicon, and you will find them on every continent on earth. Also known as rock crystals, they have a very strong vibration and excellent metaphysical properties, and are the easiest crystals to program, which may be used for a variety of purposes.