182 
Analyses of kakortokites. 
| | 
| Be ot 15207000 
SD et Le | 51-62 49-39 48-90 51-82 
TOM ate ve | 44 49 n. d. 35 
Tix Oe hr | 110 | 489 1-96 1 2:05 
OR 1563 | 10:39 7-85 13-68 
Е. 606 | 431 | 11:46 7°32 
FeO mee take. | 4-98 7-12 1332 | 1797 
Мо. | 33 97 1-11 57 
MOR ess fol. trace none 38 09 
cl a | 3-13 5-11 1-95 3:06 
NOE 10°09 eS EE) 9°75 
О. 4-19 2:62 3-23 3-92 
HS Ol above 1100. . | 212 | 1:24 1-80 = 
H,O at 140° eee un N BT — = 
NE | 17 HN ey | 16 
HR а: ned: | se ie al = 
| RADER Fea RER | none none none | — 
| 10046 | 100362 | 99°39 | 100.04 
Be ORS a 04 2 Ole "04 
ee — = == 
Total...) 10042 | 99:92? | 9938 | 10000 
Sp.gr....| 29-163 2853 | 312° 
13. Kakortokite, white sheet. Kringlerne, Kangerdluarsuk, $. 
Greenland. N. У. Ussine, analyst*. 
= 
ZrO, + TiO,. Probably titanic acid is very low since no ainigmatite is 
found in the specimen. 
Including 0°30 Nb,O,. 
Determinations by Dr. STEENSTRUP. 
The analysis No. 13 has previously been published by H. ROSENBUSCH 
(Elemente der Gesteinslehre, 1898, p. 126). As given above the percen- 
tage of CaO has been corrected, and determinations of TiO, and Cl 
have been added. For the latter determinations the author is indebted 
to Dr. WINTHER. 
i) 
& 
rs 
