3.5" Asaphid Trilobite in Sandstone Concretion

This is a large, 3.5" long Asaphid trilobite in a sandstone concretion from the Kataoua Formation of Morocco. It has a beautiful orange coloration, is very inflated and both halves of the concretion are included. This is one of the nicer examples of these large Asaphids I've seen. It does not have any restoration and the coloration is completely natural, caused by the oxidization of iron pyrite which originally replaced the trilobite.