DO NOT CALL THEM DINOSAURS

   Pterosaurs and dinosaurs belong to the group of Ornithodira, but are classified under two different superorders, the Pterosauromorpha and the Dinosauromorpha. The genetic distance between them is therefore the same as between a bear and a flying lemur. Define pterosaurs “Flying Dinosaurs” is therefore incorrect. The word “pterosaur” means…

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SALT or HALITE

Group III – Aloidi NaCl Very common The Rock Salt or Halite occurs in cubic crystals often “hopper” and with rounded corners, usually colorless or white, sometime yellow, red, brown and even blacks; more rarely patchy irregular blue and purple; predominantly cubes and in massive sedimentary beds, but also granular,…

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