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The color of the enamel is really nice
Beautiful cranial dermal scute plate of an indeterminate crocodile from the Upper Cretaceous
Small crystals of azurite can be produced by rapidly stirring a few drops of copper sulfate solution into a saturated solution of sodium carbonate and allowing the solution to stand overnight
this classification is not final
20712 - Great Collection of 2 Spinosaurus Dinosaur Teeth Cretaceous KemKem Beds Teeth The color of the enamelGreat collection of 2 specimens. Some of them have glued and tiny filled fractures. The teeth with strong and vivid fossilization colors such as red, orange and black come from small paleochannels composed by thin layers, in the intermediate and upper stratigraphic levels (Red Sandstone Beds), from the Aoufous and Ifezouane Formations (Kem Kem Basin, South of Morocco). The lithology of this body of sediment is characterized by the dominance of