REPORT OF THE DIRECTOR AND STATE GEOLOGIST 1900 r69 



8 9 10 11 12 13 14 



«i02 59.7 61.01 60.47 63.45 65.65 66.72 68.5 



AI2O3 19.52 15.36 16.36 18.38 16.84 16.15 14.69 



FegOs 1.16) .8 .42) 1.34 



> 10.75 > 4.01 3.42 



FeO 5.65^ 8.76 3.56^ 3.25 



MgO 78 .78 1.31 .35 .13 .73 .26 



CaO 3.36 4.05 2.94 3.06 2.47 2.3 2.2 



Na20 5.31 3.68 4.65 5.06 5.27 4.36 3.5 



KagO 4.14 3.9 4.71 5.15 5.04 5.66 5.9 



H2O 52 .49 .09 .3 .3 .77 .4 



TiOs 07 



P2O5 03 



MnO 09 .08 .12 trace 07 .1 



BaO 13 05 



Total 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 



Si02 -8603 .9078 .9063 .995 1.0168 1.0575 1.112 1.1417 



AI2O3 2397 .2593 .2004 .1912 .1506 .1795 .1584 .144 



Fe203-. 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 



Na20 0563 .0705 .0839 .0856 .0594 .0816 .0703 .0565 



K2O 0135 .0097 -0357 .0439 .414 .0547 .0601 .0626 



1 Noiite, wall rock of titaniferous magnetite deposit, Lincoln pond, Eliza- 



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



Hillebrand, U. S. geol. sur. 19tli an- rep't. pt 3, p. 407. 1899. 

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



Brief mention by H. P. Gushing. N. Y. state geol- 16th an. rep't. 



1896. p. 22. E. W. Morley analyst. 



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



by H. P. Gushing, analysis by E. W. Morley. N. Y. state geol. 

 19th an. rep't. p. r58. 



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



analyst. N. Y. state mus. 30th an. rep't. p. 92. 



5 Anorthosite, Keene township, Es«ex co. (precise locality not given). 



A. R. Leeds analyst. N. Y. state mus. 30th an. rep't. 



6 Anorthosite showing transition to augite syenite (905), cut by N. Y. C. 



& H. R. R. R. nearly 5 miles north of Tupper Lake Junction, Alta- 

 mont, Franklin co. E. W. Morley analyst. 



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 G. H. Smythl jr. Geol. soc. Am. 

 Bui. 6:274. 



