20084 - Nice 1.28 Inch Aragonite Twinned Crystal Cluster - Safro Mine, Bou Azzer, Morocco Geological Samples Orphanaspis

Orphanaspis

(Crocodyliformes)

Rhinophacops

Sources: Globidens sp : Fossilworks (Paleobiology Database)

The sharp and intact tips are a preservation feature very difficult to find and therefore it is one of the characteristics which influences the most in the objective valuation of a specimen

20084 - Nice 1.28 Inch Aragonite Twinned Crystal Cluster - Safro Mine, Bou Azzer, Morocco Geological Samples OrphanaspisAragonite is a carbonate mineral, one of the three most common naturally occurring crystal forms of calcium carbonate, CaCO3 (the other forms being the minerals calcite and vaterite). It is formed by biological and physical processes, including precipitation from marine and freshwater environments.