This listing is for ONE (1) Selenite Square - Charging Plate - Beveled Edge Polished Stone - Reiki - Metaphysical - Gypsum (RK5-38) STOCK PHOTO. The measurement and characteristics will vary for each of this natural stones. These slabs are hand cut and polished therefore range in size and characteristics. They measure approx.: 2.75-3" x 2.75-3" Some are more square and some are more rectangular. Great to use for crafting, meditation, spiritual practices. Wire Wrapping Makes a great gift! According to Legend and Folklore: Selenite is a crystallized form of Gypsum. It is used for protection and good luck and can clear, open, and activate the Crown and Higher Chakras. Selenite can also be used to strengthen the memory. These make wonderful charging stations for your crystals.