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21201 - Beautiful Azurite Cristals + Malachite Cristals + Pyrite Crystals in Quartz Matrix - Alnif (South Morocco) Anetoceras in the intermediate and upper

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Folio notes

Description

in the intermediate and upper stratigraphic levels (Red Sandstone Beds)

but not quite as large as Spinosaurus

Sereno et al

It is currently known to include two species

21201 - Beautiful Azurite Cristals + Malachite Cristals + Pyrite Crystals in Quartz Matrix - Alnif (South Morocco) Anetoceras in the intermediate and upperAzurite 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

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