Boulder Opal 37 x 28 x 7mm 49 carats Auction #298321 Opal Auctions
Known as hag stones, holey stones or witch stones, rocks with a naturally occuring hole in them are said to give humans the ability to peer into the world of Faerie when they close one eye and peer through the hole. They are considered by cultures around the world to be a protective amulet when hung on a cord.
Nature is Amazing!!
Most opal gemstones contain around 6% – 10% of water.
Koroit Opal Centre Nut in conglomerate [ Nut Band ]
Opal | DreamtimeUniverse-OpalNut-Yowah1
Opalized snail from Coober Pedy, South Australia:
Hematite "Ribbons" trapped inside a facetted amethyst.