Minerals identify

Know how to recognize them


Phyllosilicates,kaolinite-serpentine group

Nacrite Al)4 is a clay mineral that is polymorphous ) with kaolinite system. X-ray diffraction analysis is required for positive identification.

Nacrite was first described in 1807 for an occurrence in Saxony , Germany in reference to the dull luster of the surface of nacrite masses scattering light with slight iridescences resembling those of the mother of pearls secreted by oysters.


Crystal ( diaphaneity )