252 DESCRIPTIVE CATALOGUE 
569. Greenstone—fine-grained ; but breaking with a rough, almost hackly frac- 
ture; colour, light green. 
570. Greenstone—coarsely granular; colour, grayish green; irregular fracture ; 
in some places porphyritic. 
O71. Syenitic rock—resembling hypersthene ; coarsely granular; subporphyritic ; 
irregular fracture ; fresh fracture, greenish-coloured; weathered surface, brownish 
black ; grains of iron pyrites sparsely disseminated through it. 
572. Syenite—felspar largely predominating ; light-coloured ; hornblende in small 
crystals. Resembles syenite from the Simplon, in the Alps. 
573. Syenitic granite—a coarse-looking gray rock, with white felspar, which is 
subordinate to the hornblende. 
974. Hornblende rock—composed of quartz and hornblende ; colour, nearly black, 
from the great preponderance of crystalline hornblende. 
575. Quartzose gneiss— dark-coloured ; stained with numerous ferruginous 
blotches. 
576. Granite —felspar predominant, and of a pale flesh-colour; mica, black ; 
deeply stained with oxide of iron. 
577. From a granite vein in No. 575—contains but little mica ; the felspar 
largely predominating, and of a pale flesh-colour. Appears to be the same rock as 
No. 576. 
978. Same as No. 574, but more nearly resembling greenstone. 
979. Granite—rather coarse-grained ; dark-coloured ; composed of minute crystals 
of hornblende, quartz, black mica, and flesh-coloured felspar. 
581. Resembles No. 574—finely crystalline; the quartz predominates, however, 
and gives the rock a gray colour. 
982. Syenite—colour, grayish; composed of extremely small grains of horn- 
blende, quartz, and felspar. 
3. Quartz and flesh-coloured felspar, the felspar predominating ; coarse-grained. 
984. Granite—fine-grained ; highly crystalline; the felspar red, and the mica 
black. 
585. Altered sandstone, approaching to quartzite ; colour, red. 
586. Quartzite—a highly metamorphosed sandstone ; colour, purplish red. 
587. Limestone—containing a Murchisonia of the Silurian type. 
088. Bears N. 30° E. Very fine-grained—almost homogeneous. Colour, dark 
gray; jointed. The joints present a polished, shining, black surface, with, in some 
cases, the lustre of erystallized hornblende, and have a greasy feel. It may be 
called basaltiform greenstone. This is the first rock at the Entry Point. Between 
many of the joints, the surface is iron-shot. Magnetic. 
989. Bears N.45° E. Greenstone. Colour, greenish gray. Crystalline. _Wea- 
thers with an even surface ; contains small grains and crystals of yellow iron pyrites. 
The felspar white and greenish-coloured. Weathered surface lighter-coloured than 
a fresh fracture. 
590. This rock, which is in contact with the trap rocks, and might be classed 
among the syenites, is, undoubtedly, a metamorphosed one; and was derived, pro- 
bably, from the siliceo-argillaceous beds found between the Entry Point and Fond 
Go 
