Josv M. Sobral : On a Granite ofH.em.son (Sweden) 120 



For these investigations I used the Société Genevoise Universal Mi- 

 croscope which is specially adapted for the Fedoroff methods. 



I wish to express my sincere thanks to Dr. Robert Mauzelius of 

 Stockholm for his excellent chemical work. 



Special thanks are also due to Mr. Leslie Lomax for his kindness 

 in reading through the mannscript, and making the necessary co- 

 rrections in it as regards grammatical errors. 



ALASKOSE (POTASH-SODA-GRANITE i 

 SOUTHERiN REGIÓN OF UTANÓVIKEN (íIEMSÓN NEAR HERNÓSANd) 



(Analyst, Robert Mauzelius) 



Si0 2 



ai A 



Fe 2 3 



FeO 



%0. 



CaO -. . 



Na s O 



K,0 . 



H 2 0(+io5) 

 H 3 0(— io5) 



CO, 



TiO ? . 



Zr0 3 



VJd] 



Fl. 



S 



MnO. 



BaO.. 



Per cent. 



Mol. 



Mol. per cent 



7<4.8o 



I .2/Í67 



8l.84 



IO.7O 



0. i343 



8.82 



0.47 



0.0029 



— 



0. 6 g 



0.0096 



I .Oí 



. 4 1 



0.0102 



O.67 



o.63 



O.OI 12 



0.73 



3 . 1 1 



o.o5o2 



3.3o 



-1 • 79 



o.o5io 



3.55 



0.90 



— 



— 



0.00 



— 



— 



0.00 



— 



— 



0. n 



0.001 4 



0.09 



0.02 



0.0002 



0.01 



0.32 



0.0023 



0. 1 5 



0.08 



0.0042 



— 



0.02 



. 0006 



— 



0.02 



o.oooS 



0.02 



O.OI 



O.OOOI 



O.OI 



100. 1 3 



I .5252 



100.00 



ñl AXTITATIYE CLASSIFICATION 



A orín 



Quartz 



37.20 



Hypersthene. . 



1.72 



Orthoclase . . . . 



28.36 



Ilmenite 



0.21 



Albite . 



26 . 3o 



Magnetil.0. 



0.67 



Anorthite . . . . . 



o.53 



Apatite . 



0-77 



Gorundum . . . . 



3.i8 



Fluovite . 



0. i3 



Zircon 



. o4 



l'vrite 



. o4 



