22111 - Nice Pink Erythrite Crystals on Matrix - Bou Azzer Mine (South Morocco) Walliserops Very rare natural association of

Very rare natural association of these 5 different species of trilobites

56 Inch = 14

Only has small glued and filled fracture

Eocrinoidea - Ascocystitida

In the international market is very common to find Mosasaurus rests in natural matrix coming from the phosphate quarries of the Upper Cretaceous of the Ouled Abdoun Basin (Morocco)

22111 - Nice Pink Erythrite Crystals on Matrix - Bou Azzer Mine (South Morocco) Walliserops Very rare natural association ofErythrite or red cobalt is a secondary hydrated cobalt arsenate mineral with the formula (Co3(AsO4)28H2O). Erythrite and annabergite (Ni3(AsO4)28H2O) (nickel arsenate) form a complete series with the general formula (Co,Ni)3(AsO4)28H2O. Erythrite crystallizes in the monoclinic system and forms prismatic crystals. The color is crimson to pink and occurs as a secondary coating known as cobalt bloom on cobalt arsenide minerals. Well formed crystals are