20804 - Top Beautiful Huge 4.07 Inch Calcite Crystals from South Morocco - New Location Titanite Departement de Géologie

Departement de Géologie

complete and without restorations or reparations

The vast majority of the outer layer of the root has disappeared

External nostrils at the posterior end of its snout and an internal naris in its pterygoid indicated a habit of hunting while swimming with the top of the head above the water

66 million years ago

20804 - Top Beautiful Huge 4.07 Inch Calcite Crystals from South Morocco - New Location Titanite Departement de GéologieHuge and sharp crystals of calcite from a new location unpublished in the mountains of the Erich region, Morocco. Calcite 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". Other polymorphs of calcium carbonate are the minerals aragonite and vaterite. Aragonite will change to calcite over timescales of days or less at