Sue from @brokenrivermining presents: Opal Fossils with Unpreserved Internal Details Opal formation commences when silica dissolves in water. At our Russell’s opal mine we have found that this silica solution occupies a void most probably left by decaying tree roots or branches. When it solidifies it creates an opalized replica of the original object. These are also known as ‘jelly mould’ fossils. In some rare cases, like shown above, we have found large and rare opal fossil specimens with beaut

💎🔥 How Opals Are Born! 🔥💎 Wayne breaks down the magic of opal formation—how silica and time create these breathtaking Boulder Opal specimens! 🌈 From massive rough pieces to mesmerizing gem-grade opal, nature’s artistry is on full display. What’s your favorite type of Boulder Opal? Let us know in the comments! 👇 #Opal #OpalAuctions #BoulderOpal #OpalFormation #GemstoneMagic #AustralianOpal #NaturesArt #liveauction | Opal Auctions