07617 - Beautiful Orthoclase (Feldspar) Crystals from High Atlas Mountains, Morocco Basilosaurus Teeth It comes from the Lower

It comes from the Lower Ordovician of the Famous Fezouata Formation

The rostral barbs of this enormous sawfish are relatively common in the Cretaceous quarries in the South of Morocco

Its fossilization color has gorgeous orangish shades

Eremiasaurus heterodontus

we provisionally denote the Polish and Maastricht specimens as “ Mosasaurus ( Leiodon ) cfr

07617 - Beautiful Orthoclase (Feldspar) Crystals from High Atlas Mountains, Morocco Basilosaurus Teeth It comes from the LowerOrthoclase, or orthoclase feldspar (endmember formula KAlSi3O8), is an important tectosilicate mineral which forms igneous rock. The name is from the Ancient Greek for "straight fracture," because its two cleavage planes are at right angles to each other. It is a type of potassium feldspar, also known as K feldspar.