Agatized Dinosaur Bone "Egg" - Stunning!

This is a stunningly polished "egg" of agatized dinosaur bone, which was hand-crafted by master stone carver, Kenneth Kolb. The beautifully preserved cell structure inside this piece is simply jaw dropping. This sculptured piece is 1" x 1" x 1-1/4" and comes with the pictured metal stand. Gem grade, agatized dinosaur bone with of this high quality is very rare and this was the last egg shaped sculpture currently available from the artist.

This may have come from any of the dinosaurs found in the Morrison Formation including Allosaurus, Apatosaurus, Brachiosaurus, Camarasaurus, Diplodocus, Stegosaurus, and Torvosaurus.

Agatized or agate replaced dinosaur bone is a rare form of fossilized dinosaur bone where the original fossilized bone (typically permineralized with calcite) has been re-mineralized (replaced/substituted) with silica-type compounds (agate, jasper, chalcedony, or opal). In a unique and isolated circumstance, the strata on the Colorado Plateau were uplifted during the tertiary intrusions, about 35,000,000 years ago, when the San Rafael Swell and the La Sals, Henry, and Abajo Mountains were formed. As these ranges were forming, local strata layers were flooded with silica-rich, superheated groundwater. This provided the appropriate environment to begin the replacement of the calcite in the original fossils with silicates. The most prolific layers of gem bone come from the Morrison Formation which is late Jurassic in age.
Morrison Formation
1" x 1" x 1-1/4"
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