20712 - Great Collection of 2 Spinosaurus Dinosaur Teeth Cretaceous KemKem Beds Teeth that lived during the Early–Late

that lived during the Early–Late Cretaceous period in Africa about 99-100 million years ago

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

Chlustinia

It is characterized by its fineness of grain and variety of color

featuring intense and brilliant red tones

20712 - Great Collection of 2 Spinosaurus Dinosaur Teeth Cretaceous KemKem Beds Teeth that lived during the Early–LateGreat 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