20093 - Beautiful Deep Blue Azurite Crystals on Carbonate Matrix - Kerrouchen (Morocco) Mosasaur Skulls & Skeletons this is a magnificent acquisition

this is a magnificent acquisition for any collection

Rebbachisaurus is a genus of sauropod dinosaur of the superfamily Diplodocoidea

Calymenina

Since the first study of Moroccan fossil turtles

Therefore this type of teeth is everyday more scarce

20093 - Beautiful Deep Blue Azurite Crystals on Carbonate Matrix - Kerrouchen (Morocco) Mosasaur Skulls & Skeletons this is a magnificent acquisitionAzurite is one of the two basic copper carbonate minerals, the other being bright green malachite. Simple copper carbonate (CuCO3) is not known to exist in nature. Azurite has the formula Cu3(CO3)2(OH)2, with the copper cations linked to two different anions, carbonate and hydroxide. 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