09133 - Top Beautiful Huge 7.80 Inch Calcite Crystals from South Morocco Basseiarges Cyphaspis is a genus of
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Description
Cyphaspis is a genus of small trilobite that lived from the Late Ordovician to the Late Devonian
many of the spines during the preparation process have been fractured and glued again
Nice reedish color
Carroll 1988
It does not have any type of restoration or repair
09133 - Top Beautiful Huge 7.80 Inch Calcite Crystals from South Morocco Basseiarges Cyphaspis is a genus ofHuge and sharp crystals of calcite from a new location unpublished in the mountains of the Erich region, Morocco.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
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