Etsy – ThrowinStones
https://www.etsy.com/listing/541021061/small-aa-grade-raw-opal-5-or-25g-lot
https://www.etsy.com/shop/ThrowinStones/items?search_query=opal
October Birthstone Color Multi-Color Opal Crystals
Raw Opal Crystals (Ethiopia) from Throwin Stones