Reviews
This Specimen has been sold.
HERE ARE SOME OTHER SIMILAR FOSSILS FOR SALE
Colorado Agatized Dinosaur Bone Bracelet
This is a bracelet made from 150 million year old, polished, agatized dinosaur bone. The internal cell structure of the dinosaur bone can clearly be seen in the polished bone.
The bone may have come from any of the dinosaurs found in the Morrison Formation including Allosaurus, Apatosaurus, Brachiosaurus, Camarasaurus, Diplodocus, Stegosaurus, and Torvosaurus. While complete bones or even near complete bones are rare, tumbled fragments of bone are very common in sections of the Morrison Formation. Some of this bone has been agatized, replaced with silica instead of calcified.
The bone may have come from any of the dinosaurs found in the Morrison Formation including Allosaurus, Apatosaurus, Brachiosaurus, Camarasaurus, Diplodocus, Stegosaurus, and Torvosaurus. While complete bones or even near complete bones are rare, tumbled fragments of bone are very common in sections of the Morrison Formation. Some of this bone has been agatized, replaced with silica instead of calcified.
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 with silica-type compounds such as 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 million 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 start this calcite-silicate replacement in the original fossils. The most prolific layers of gem bone come from the Morrison Formation, which is late Jurassic in age.
In a unique and isolated circumstance, the strata on the Colorado Plateau were uplifted during the tertiary intrusions about 35 million 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 start this calcite-silicate replacement in the original fossils. The most prolific layers of gem bone come from the Morrison Formation, which is late Jurassic in age.
SPECIES
Unknown
LOCATION
Colorado
FORMATION
Brushy Basin Member, Morrison Formation
SIZE
Band Stretches
CATEGORY
SUB CATEGORY
ITEM
#40867
We guarantee the authenticity of all of our specimens.
