The Mineral Resources of Greenland. 47 
At Ekalunguit, about 11 km (8 miles) south of Old Egedesminde, 
there are numerous bands in the iron-stained granite gneiss which 
contain a fair graphite content. The most important band is 12 m 
(40 feet) wide and others from 2.5—3 m (8 to 10 feet). 
The Amitsok!) graphite deposit situated 72 km (45 miles) southeast 
of Julianehaab, was discovered in the summer of 1911 by M. IB NYEBOE. 
The island, which is mountainous, is composed of granite gneiss cut 
by a few stringers of pegmatite and quartz. The average strike of the 
somewhat crenulated gneiss is N. 75 E.—S. 75 W. and the dip W. of №. 
averages 35° but varies from 15°—45°. At the mine graphite occurs 
in 3 zones, of which the two more northerly are comparatively short, 
while the third consists of two segments, separated from one another 
by north to south faults; the length of this third lens is 600 m (2 000 
feet). It is from 3.7 to 15m (12 to 48 feet) wide. As usual, in such 
deposits, the graphite outcrop is marked by an iron-stained band, and, 
in places, by a grassy depression. The granite gneiss walls carry but 
little graphite, the contact being rather well defined. 
The hanging wall is a fine-grained, biotite rich granite gneiss, while 
the footwall of the veins is pyritized graphite-bearing gneissic granite. 
The iron-stained, oxidized outcrop extends to a depth of but 0.3 to 
0.6 mm (1 Or 2 ech), 
The ore is a sheared granite gneiss, containing from 20—24 % 
graphite, a little biotite and considerable quartz and pyrite or limonite, 
its alteration product. It is cut by quartz or pyrite veinlets. At places 
lenticular bodies of lean gneiss form horses in the graphite mass. Con- 
siderable shipments have averaged 20 % graphite, the best ore being 
against the foot and hanging walls where most movement has occurred. 
The graphite plates reach a maximum diameter of 0.15 em (!/,, inch). 
At the beginning, opencut mining was done, but in 1916 an inclined 
shaft was started. The deposit above sea level contains some 500 000 
tons of high-grade graphite-bearing granite gneiss. A small amount of 
graphite has already been marketed by the Grønlandsk Minedrifts Aktie- 
selskab, the owners. Mining costs in Greenland in 1915 by quarrying 
were about 2 Kroner per ton; underground mining will cost probably 
10 Kroner per ton. To each figure must be added 0.75 Kr. for loading 
on vessel, some 6 Kroner for overhead charges, and about 25 Kr. freight 
from Greenland to Copenhagen. The material is to be milled to a 50 % 
rough product in Greenland and finished in Copenhagen. 
In 1914 some 300 tons and in 1915 some 2 000 tons of ore were 
mined. In 1918, 38 tons, in 1919, 42 tons, in 1920, 85 tons and in 1921, 
1) Private reports by О. N. Linpaas, 1914, WALTER STRACHE, 1915, and CLINTON 
BERNARD, 1915. 
