They told you the Egyptians carved 2.3 million blocks from a quarry and dragged them across the desert on ramps and rollers. But when scientists actually drilled into the Great Pyramid the stone told a completely different story. The quarry limestone was 97 percent calcite. Dense. Uniform. Exactly what you'd expect. The pyramid stone was different. Lighter. Full of tiny air bubbles. Contained minerals like opal and silico-aluminate that do not exist in natural Egyptian limestone. And the fossils

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