Rough, raw fire opal crystals - unpolished and no drill hole. 11.5-12 grams of mixed sizes, length and diameter. See photos for examples. Each bag is different, some have more larger beads, and some have more of the smaller variety.  Sizes range from 5mm in diameter to 12mm x 23mm. Photos show the variety of stones which are bagged. Bags picked and shipped by random.