Rough Selenite 24-Piece Box (FLSEL-BB) 24-piece flat of natural rough Selenite Each single rock is 1.25"-1.75" average Total weight of flat is about 1.75-2lbs and size is 6" wide x 11.25" long x 1.5" deep Natural gemstones will vary in tone, shape and pattern *Picture is example only This listing is for one (1) 24 pc natural gemstones. CRYSTAL RIVER GEMS PACK OF 10 - Tiny Selenite Pocket Hearts / 30-40 mm avg. 100% Natural Moroccan Selenite Measures at approximately 30-40 mm "Selenite" is the crystallized form of the soft mineral Gypsum. In antiquity, it was believed selenite waxed and waned with the cycles of the Moon inspiring it's name which stems from the Latin word selenites, meaning "moon stone".