36 
lie vertically and proceed from the upper and lower borders of 
the band. Then comes а 10-—40 centimeters broad band (с) of 
very variable character; it is composed mainly of felspar with 
a good deal of ægirine, which lies in part in radiating groups 
of crystals; further, there is a little eudialyte, rinkite, and 
arfvedsonite. The lowest band (d), has a thickness of up to 
60 centimeters, but thins out wedge-like at both sides; it consists 
of an almost pure, coarse-grained mass of eudialyte. This 
eudialyte vein sometimes shows a sharp contact, sometimes 
a gradual transition towards the underlying naujaite, which is 
here unusually rich in eudialyte. At some places the three 
uppermost zones (a—c) are replaced by a single pegmatite zone 
30— 50 centimeters thick, which has very large crystals; its 
felspar plates measure up to 25><8 centimeters, the arfvedsonite 
30><10 centimeters, the egirine 102 centimeters; here also 
there is nepheline (е. g. 4 < 5 centimeters) and in pockets crystals 
of natrolite. 
A second pegmatite vein which deserves to be mentioned, 
lies at the head of the fjord, in the shore cliffs a little north- 
west of Lille Elv. This vein is up to 0'5 meters broad and 
like the first-mentioned almost horizontal. It consists mainly 
of felspar, sodalite and arfvedsonite. The felspar crystals are 
up to 25 centimeters long and are quite devoid of included 
sodalite crystals; the latter mineral is in large green crystals, 
which lie between the felspars. This vein contains egirine in 
long prisms, eudialyte, steenstrupine, brown schizolite, yellow 
sphalerite, molybdenite, zinnwaldite, albite and analcime. 
FROM LILLE ELV TO LAXEFJELD. 
THE LUJAVRITES AND THEIR RELATION TO 
THE NAUJAITE. 
The breccia zone. — As already mentioned, the naujaite 
sheets have on the whole a slight dip towards the west and 
