NOT KNOWN DETAILS ABOUT YB:GLASS & ER

 4a,b. And it might be proved through the orientation romance by PF mapping, as demonstrated in Fig. 4c,d, examining it by which the close-packed airplane 200 of diopside plus the near-packed airplane 111 of spinel obtained. Other than, the several orientation connection with PF mapping is usually expressed with the several points overlapped, By