332 



NEW YORK STATE MUSEUM 



SiO, 

 ALO., 

 Fe,03 



FeO . 



MgO . 



CaO. 



Na^O 



Ka,0 



H^O ., 



TiO^ , 



P.O.. 



MnO 



BaO 



8 



9 



10 



11 



12 



13 



14 



59.7 



61.01 



60.47 



63.45 



65.65 



66.72 



68.5 



19.52 



15.36 



16.36 



18.38 



16.84 



16.15 



14.69 



1.16] 



10.75 



.8 



.42- 



4.01 



3.42 



1.34 



5.65J 



.78 



.78 



8.76 

 1.31 



3.56 

 .35 



.13 



.73 



3.25 

 .26 



3.36 



4.05 



2.94 



3.06 



2.47 



2.3 



2.2 



5.31 



3.68 



4.65 



5.06 



5.27 



4.36 



3.5 



4.14 



3.9 



4.71 



5.15 



5.04 



5.66 



5.9 



.52 



.49 



.09 



.3 



.3 



.77 



.4 



.07 



.09 



.08 



,12 



trace 

 .13 



.07 



.03 

 .1 



.05 



To 



tal 



100.23 



100.1 



100.21 



99.73 



99.71 



100.18 



100.22 



Sp. gr. 





2.674 





2.82 



2.72 















Molecular ratios 











3 



4 



6 



8 



9 



11 



13 



14 



SiO^.. 



.8603 



.9078 



.9063 



.995 



1.0168 



1.0575 



1.112 



1.1417 



AI2O3 . 



.2397 



.2593 



.2004 



.1912 



.1506 



.1795 



.1584 



.144 



Fe^Os . 



.0103 



.0081 



.0174 



.0072 



.0216 



.0026 





.008 



FeO.. 



.0736 



.0092 



.0764 



.0785 



.1014 



.0494 



.0475 



.0451 



MgO . 



.0302 



.0172 



.0497 



.0195 



.0195 



.0087 



.0182 



.0065 



CaO.. 



.178 



.1929 



.0963 



.06 



.0723 



.0523 



.0411 



.0393 



Na^O . 



.0563 



.0705 



.0839 



.0856 



.0594 



.0816 



.0703 



.a565 



ICO .. 



.0135 



.0097 



.0357 



.0439 



.0414 



.0547 



.0601 



.0626 



1 Norite, wall roc-k of titaniferous magnetite deposit, Lincoln pond, Eliza- 



bethtown, Essex co. Description by J. F. Kemp, analysis by W. F. 

 Hillebrand, U. S. Geol. Sur. 1899. 19th An. Rep't, pt 3, p.407. 



2 Gabbro (hyperite). dike near Nicholville, Hopkinton, St Lawrence co. 



Brief mention by H. P. Cushjng. 16tli An. Rep't N. Y. State Geol. 

 1899. p. 22. E. W. Morley analyst. 



3 Anorthosite gabbro, Carnes's quarrj^ Altona, Clinton co. Description 



by H. P. Cushing, analysis by E. W. Morley. 19th An. Rep't N. Y. 

 State Geol. 1901. p.r58. 



4 Anorthosite, summit of Mt Marcy, Keene, Essex co. A. R. Leeds analyst. 



N. Y. State Mus. 30th An. Rep't. 1878. p.92. 



5 Anorthosite, Keene township, Essex co. (precise locality not given). 



A. R. Leeds analyst. N. Y. State Mus. 30th An. Rep't. 1878. 



6 Anorthosite showing transition to augite syenite, cut by N. Y. C. & H. R. 



R. R. nearly 5 miles north of Tupper Lake Jimction, Altamont, Frank- 

 lin CO. Description by H. P. Cushing, analysis by E. W. Morley. 20th 

 An. Rep't N. Y. State Geol. 1902. p.rGS. 



7 Gabbro, intermediate between gabbro and augite syenite and occurring 



as a basic phase of the latter ; from Natural Bridge, Diana, Lewis co. 

 Description and analysis by C. H. Smyth jr. Geol. Soc. Am. Bui. 

 6 :274. 



