Hornblende schist 1.
Diorite 4.
Quartz (crystalline) 7.
White limestone (one at least in all probability
from the Rocky Mts) 11.
Orange weathering ironstone (local) 1.
Hard altered clay rocks. yellowish greenish.-grey, blackish 6.
Quartzites & hard sandstones (Siliceous pebble drift) 100.
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Analyses by colour of components of siliceous pebble drift
Grey & greyish 17.
Greenish 1.
Yellowish. cherty. 3.
Reddish & purplish 21.
Whitish or only slightly iron stained 15.
Yellowish & brownish 40.
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The Siliceous pebble or Quartzite drift rather a mixed assembly. Some samples so compact that difficult to distinguish them from metamorphosed clay rocks which might be highly silicious. This especially the case with the brownish & yellowish series. Many of the same series are however coarse grained quartzite, still distinctly saccharoidal appearance. Some of purplish & reddish of same texture though many quite compact. Several of the greyish are quite large grained, the constituent particles being of differently coloured rocks: a few samples. Especially among the greyish are softer than the rest & may be local.