The Granite Industry of Southwestern New Brunswick: A Historical ...
The Granite Industry of Southwestern New Brunswick: A Historical ...
The Granite Industry of Southwestern New Brunswick: A Historical ...
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Part One — <strong>The</strong> St. George District 55<br />
Chickahominy Mountain. Above right: View from the top <strong>of</strong> the<br />
mountain, looking southwestward across Bocabec Bay. Upper:<br />
Axle <strong>of</strong> an old rail cart from the Stuart Quarry on Chickahominy<br />
Mountain. Lower: Stuart Quarry, overgrown with vegetation. LF<br />
Parks (1914, p. 148) describes the black stone from this quarry as a<br />
coarse-grained diabase. He reports that the stone is hard to cut, as evidenced<br />
by its low drilling factor, and so was not used ‘so largely as its susceptibility<br />
to fine polish would warrant.’ <strong>The</strong> feldspars are almost unaltered, and<br />
much <strong>of</strong> the augite has not altered to hornblende. <strong>The</strong> corrosion test shows<br />
that the dark minerals are attacked and that a surface film <strong>of</strong> lighter green<br />
appears. According to Parks, the greater weight, higher specific gravity, lower<br />
pore space, lower coefficient <strong>of</strong> saturation, considerably greater transverse