07635 - Beautiful Orthoclase (Feldspar) Crystals from High Atlas Mountains, Morocco Onchopristis Bones Awaiting this revision
Yard notes & kiln story
Description
Awaiting this revision
it seems to be from the incisors of the symphysis
2019: "The nileid trilobite Symphysurus from upper Tremadocian strata of the Moroccan Anti-Atlas: taxonomic reappraisal and palaeoenvironmental implications" Fossils and Strata
Most of the teeth rests are isolated
The eyes facets of this specimen are amazingly well detailed
07635 - Beautiful Orthoclase (Feldspar) Crystals from High Atlas Mountains, Morocco Onchopristis Bones Awaiting this revisionOrthoclase, 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.