22199 - Beautiful Yellow Green Apatite Crystal - Imilchil (Morocco) Rare You can see the system

You can see the system of sensory lines (terrace ridges) that are already described in the article (1)

pyroxene and ilmenite microcrysts

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

is an iron sulfide with the chemical formula FeS2 (iron(II) disulfide)

22199 - Beautiful Yellow Green Apatite Crystal - Imilchil (Morocco) Rare You can see the systemApatite is a group of phosphate minerals, usually referring to hydroxylapatite, fluorapatite and chlorapatite, with high concentrations of OH, F and Cl ions, respectively, in the crystal. The formula of the admixture of the three most common endmembers is written as Ca10(PO4)6(OH,F,Cl)2.