Opalized Ammonite Fossil Half (M12716)SOLD!Ammonite is a fossil of an extinct sea predator that lived over 65 million years ago. They belonged to a group known as cephalopods which are known today as squids, octopus, cuttlefish and nautilus. The ammonite shell is made of the mineral aragonite, a form of calcium carbonate and is divided into a series of air chambers. The series of air chambers allowed for ammonite to float. This lovely ammonite has been cut in half to reveal the inner chambers that are now filled with crystals and fossilized mud. It has a nice polish which brings out the fiery red hues of the exterior. This fossil is from Tullear, Madagascar.
The shell measures 3.25" x 4" x 0.5" and weighs 4.6 oz. |
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