07635 - Beautiful Orthoclase (Feldspar) Crystals from High Atlas Mountains, Morocco Onchopristis Bones Nicely preserved
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Description
Nicely preserved
2019: "The nileid trilobite Symphysurus from upper Tremadocian strata of the Moroccan Anti-Atlas: taxonomic reappraisal and palaeoenvironmental implications" Fossils and Strata
In the same matrix another shark tooth of the Odontaspidae family can be seen associated
Awaiting this revision
Miraspidinae
07635 - Beautiful Orthoclase (Feldspar) Crystals from High Atlas Mountains, Morocco Onchopristis Bones Nicely preservedOrthoclase, 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.
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