20859 - Pink Cobaltoan Calcite Crystals on Matrix - Bou Azzer Mine (South Morocco) Claw The basin has a so

The basin has a so great continuity in its stratigraphic record that both the Upper Cretaceous as well as the two first epochs of the Paleogene (Paleocene and Eocene) can be studied

Type locality and horizon: Grand Daoui area

- Dirqadim Gaffney et al

Subtaxa: Stephanodus lybicus

Its tooth are tremendously sharp and present a slight curvature

20859 - Pink Cobaltoan Calcite Crystals on Matrix - Bou Azzer Mine (South Morocco) Claw The basin has a soCalcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). The Mohs scale of mineral hardness, based on scratch hardness comparison, defines value 3 as "calcite". The Cobaltoan calcite is a variety of calcite containing Co2+ replacing Ca, that's the reason for its pretty pink color.