Conodont elements are calcium phosphate(apatite structure)mineralized remains of the cephalic feeding apparatus of an extinct marine organism.Due to the high affinity of apatite for rare earth elements(REE)and other h...
From Delacroix,Courbetto Impressionism-World of Light and Shadow from Normandy,France Authentic Work,an art exhibition,kicked off on July 16 at the China Millennium Monument,and will last until October15.Supported by ...