Fig. 7. 



PuTope 

 ri-I.WS 

 &-3.SI0 



Spessnr/ife 

 n=t80C 



Fig. 8. 



flvdradite 

 -n-MS 

 G.-3.W0 



njrope tH 



"- 1.705 



t^hlmandite 

 n=/830 

 G.-¥ZSO 



