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is a calcium carbonate mineral with a Mohs hardness of 3 and forms the basis of limestone and marble
these stones may look like ordinary limestone
forming the complex internal structure that becomes especially visible when the fossil is polished
making it instantly captivating
These meteorites are thought to have crystallized from differentiated basaltic magma on Vesta’s surface
4.6" Maiasaura Hadrosaur Dinosaur Rib Bone Fossil Two Medicine FM Montana COA Acanthoceras is a calcium carbonate mineralLocation: Two Medicine Formation, Montana (Private Land Origin) Weight: 4. 6 Ounces Dimensions: 4. 6 Inches Long, 1. 6 Inches Wide, 0. 8 Inches Thick Comes with a Certificate of Authenticity The item pictured is the one you will receive. Cretaceous Age 83 70 Million Years Old. Name: Maiasaura Type: Herbivore Size: 9 meters in length. Maiasaura is a large hadrosaurid dinosaur from the Upper Cretaceous of North America, dated to approximately 6570
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