456 Scientific Proceedings, Royal Dublin Society. 



Uni-Silicates — continued. 



Vesuvianite Adularia 



A 1074 A 1218 



B 1085 B 1214 



Epidote Albite 



A 1004 1222 



B 1026 Microcline. 



Zoisite 1219 



1045 Labradorite 



Dioptase A 1285 



1221 



B 1273 



Axinite 



1045 



Galena 777 



Zinoblende 1099 

 Molybdenite 1235 



Iron Pyrites 692 (approx.) 

 Marcasite 692 {approa-.) 



