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uppermost sheets, immediately below the breccia-zone, are as 
a rule arfvedsonite-lujavrite. Farther downwards the egirine 
variety dominates and is here exposed in cliffs several hundred 
meters high and of an uniform green colour. In the lower- 
most visible sheets of the complex, at the mouth of Laxe-Elv, 
the arfvedsonile variety again prevails. 
Egirine-lujavrite. 
Macroscopic uppearance. — This rock is as a rule of a 
rather fine-grained structure and there is a very conspicuous 
parallel arrangement of the minerals produeing a marked fis- 
sility or schistosity. The surfaces along which the rock splits 
up are somewhat uneven and often exhibit an almost silky 
lustre. This, as well as the peculiar grass-green or dark green 
colour, is due to the egirine occurring abundantly in slender 
needles. On a fresh fractured surface parallel to the fissile 
structure ægirine is often the only visible constituent. Most of 
the needles lie parallel to the surface and not unfrequently 
they show a slight tendency to parallel arrangement in one 
direction. On the cross fracture felspar, nepheline, and eudia- 
[уе may be detected with the naked eye. The felspar is in 
very fresh and clear, small crystals of thin tabular habit, ar- 
ranged parallel to the schistose structure. The nepheline com- 
monly appears as small white crystals of short rectangular or 
rounded outline; and the eudialyte crystals, when fresh, are of 
a clear brown colour and as a rule of much smaller dimensions 
than the nepheline-crystals. 
A very conspicuous feature of most varieties of the ægirine- 
lujavrite is the presence of relatively large (1—3 centimeters) 
black patches of arfvedsonite producing a porphyritic appear- 
ance. In some places these arfvedsonite-patches are of quite 
irregular shape, in others they are prismatic and the prisms 
are sometimes arranged in radiate groups. These crystals 
and anhedra of arfvedsonite are not ordinary phenocrysts: 
