Polished Selenite Bar - Crystal Charging StationYou are purchasing one polished selenite charging plate which measures 6in x 1. 25in x . 25in. These stones are a perfect addition to your crystal grid or terrarium. They are also useful for meditation or reiki sessions. Selenite is a soft white or clear crystal and a variety of the mineral gypsum, a cousin of desert rose and gypsum flower. It is known primarily as a charging crystal, Selenite can charge any other crystals you may use, including black