The Mineral Resources of Greenland. 25 
1 
ze. 
T = Tantalite. 
ite. 
Tl 
Side 
S 
Galena. 
te—pegmatite. Natural $ 
1 
G 
J 
Pyrite. 
te—pyr 
i 
te—molybden 
i 
Fig. 12. Quartz—cryol 
Q = Quartz. С = Cryolite. M = Molybdenite. P 
The pegmatitic mass well exposed on the southwest wall of the 
cryolite mass evidences the origin of the main body. This pegmatite, 
which clearly cuts the granite in numerous apophyses, consists of huge 
individuals up to 0.6 m (two feet) in length of microcline and quartz. 
Here and there cryolite forms crystal faces against felspar and also 
