22109 - Top Beautiful Huge 5.27 Inch Calcite Crystals from South Morocco Euclastes Although more analysis is needed

Although more analysis is needed

mire/swamp (1)

Nascimento and Zaher 2011

The contrast between the root and the enameled crown is sharp and perfect

org/wiki/Aoufous_Formation

22109 - Top Beautiful Huge 5.27 Inch Calcite Crystals from South Morocco Euclastes Although more analysis is neededHuge and sharp crystals of calcite from a new location unpublished in the mountains of the Erich region, Morocco.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