This beautiful boulder opal rub parcel was mined from a deposit in Winton, Queensland, Australia.
"Rubs" are partially preformed rough opals that have been trimmed and shaped to show their potential but are not polished. The images show the stones both wet and dry. These pieces are perfect for beginners just starting out with cutting and polishing opal to practice on. They are also great as as collectors pieces when kept in water or you can even use baby oil!