Quartz Star Pendant
Quartz is a crystal consisting of silicon dioxide. Many gemstones are a variety of quartz, such as citrine, agate, amethyst, rose quartz, smokey quartz, as well as all chalcedony varieties such as carnelian, bloodstone, and jasper.
Clear quartz is also called crystal quartz, quartz crystal, or rock crystal. It can be found in natural crystal formations, or tumbled into beads.