220 



INDEX. 



Chemical analysis of elseolite • 

 „ „ felspar-rock 



„ „ el .-syenite 



Chrysoberyl • . . • 

 Classification of the rocks . • 

 Coleman, A. P. . 

 Contemporaneous veins in el. -syenite 

 Corundum . , 



„ artificial formation of 

 „ associated with peridotites 

 „ origin of . • • 

 Corundum-pegmatite in the Urals 

 Corundum-syenite • . • 

 Corundum-syenite in the Urals . 

 Cryptoperthite . • 



" Crystal-court " around plagioclase 



206 



Page 



. 187 



202, 211 



180, 181 



202, 213 



177, 213 



, 207, 213 



. 184 



. 202 



207, 217 



209, 210 



. 205 



. 210 



. 201 



. 210 



179, 188 



. 191 



Davy, J. . . . 



Differentiation within the province 



. 185 

 . 216 



Elseolite, chemical analysis of 



„ characters of 

 El -syenite, varieties of . 

 El.-syenite-pegmatite 



• • 



. 187 



178, 179 



• 177 



. 184 



Felspar-rock . . . . • 



201 



„ analysis of .... . 



• • . . 211 



Ferrier, W. F. 



. 206 



Foliation of el. -syenite . . • . . • 



. 171, 213 



„ significance of . . . . . 



. . . .173 



