The Mineral Resources of Greenland. 59 
Miscellaneous non-metallic minerals. 
Small lenses of talc similar in origin to those of asbestos described 
above occur in а number of dunite masses. 
Felspar is а constant constituent of the pegmatites and certain of 
these dikes are practically pure felspar. Freight rates are too high, 
however, for it to be of economic interest. 
Fluorspar occurs аз а gangue both of the Ivigtut cryolite deposit 
and of the Josva copper vein. It is also reported from a large number 
of places in the region between the Josva copper mine and Cape Farewell. 
The fact that it is practically confined to this southern region and some- 
times occurs in veins in the Devonian(?) sandstone indicates that it 
is one of the minerals incident to the intrusion of the soda-rich 
syenites. 
Barite in small amount occurs in Devonian(?) sandstone of the 
Julianehaab region. 
Apatite, usually associated with granite or pegmatite, is fairly 
widely distributed in small quantities. 
Retinite. 
In the coal of Hare Island, Atanekerdluk, Ekorgfat, Arsasak, and 
at 64 km (40 miles) n.w.w. of Ritenbenk, are found particles of small 
nodules of а yellowish fossil resin, retinite. The largest are the size 
of а marble. At Hare Island, СтеЕЗЕСКЕ reports that the variously 
sized particles are disseminated parallel to the bedding of the coal. 
At Unartuarsuk and Ujaragsugsuk, retinite occurs similarly in sand- 
stone. At Arsasat K. J. V. STEENSTRUP reports it in gray shale oc- 
curring as a veinlet 0.3 m (1 foot) long and 1 cm (1/34 inch) wide. The 
retinite is cut into vertical columns by small fractures. An analysis 
by CuyDenıus!) of Greenland retinite follows — С. 73.47 %, H. 10.20 %, 
О. 16.33 % corresponding to the formula C,H,0. 
Hot springs. 
Two hot springs exist, but both are situated at a distance from 
the Tertiary basalt flows. One is at Unartok (Eskimo “hot water”) on 
the southwest coast, the other is a hot sulphur spring on Henry land 
on the east coast; the latter has a temperature of about 38° C. Unar- 
tok is mentioned by Ivar BAARDSEN the Norse chronicler who lived at 
the beginning of the 15th century. He states that a Benedictine convent 
was once situated there and that baths therein were efficaeous against 
1) Geol. Foren. Stockholm Förh. Bd. 2. 1875. р. 549. 
