50 



NEW YORK STATE MUSEUM 



K2O .. 

 H2O + 

 H2O— 

 CO2 .. 

 Ti02 . 

 ZrO .. 

 P2O5 • • 



S 



MriO ■ 

 BaO . 

 Cr.Oa 



o-s 



14 





2 



3 



4 



2.38 



2-54 



1.58 





46 



•45 



.60 





II 



.02 



•03 





16 



none 



none 





46 



300 



2-34 





09 



none 



none 





06 



1.24 



•53 





07 



.27 



•22 





•03 



.21 



•15 



none 



tr 



.02 



none 



none 



none 



Total 



99-74 



Quartz 



Orthoclase 



Albite 



Kaolin 



Calcite 



Titanite 



Zircon 



CaO.SiO. 



MgO.SiOa 



MgO.Al2O3.SiO2 . . . 



FeO.Si02 



MnO.SiOa 



2(K20.Fe.03.2Si02) 



2Mg0.Si0'2 



Magnetite 



MgO.AUOs 



Pyrrhotite 



Apatite 



P2O5 



CO2 excess 



H2O— 



MnO 



100.71 



21.540 

 36.696 

 20.960 



198 



5-336 

 3.800 



1.848 



6.732 



1.260 



.928 



100.74 100.35 

 .03 .10 



100.25 



2 



24.540 



13' 

 3- 



344 

 448 

 096 

 200 

 188 

 182 



2.100 



1. 716 



232 



120 



.060 



.044 

 • no 

 •030 



99.53 

 .09 



90 44 



14.456 



39.300 



3-096 



7.128 



5-336 



.900 



1. 616 



17-688 



•393 



•232 

 6.390 



.480 

 3^016 



Total 99.298 100.410 ICO. 031 



1 Granitic extreme of syenite series i mile west of Mineville. Analyzed 

 by Charles Fulton. 



2 Granitic extreme of syenite series ; hanging wall of magnetite. Mine- 

 ville. Analyzed by M. K. Adams. 



3 Average syenite of rocks containing the Mineville magnetite. M. K. 

 Adams. 



4 Basic syenite of rocks containing the Mineville magnetite. M. K. Adams. 



