PENROSE. 1 
APATITES OF CANADA. 
35 
over half a mile, while others are short and amount to little more than 
pockets. In places the ground is literally cut up by a net- work of these 
veins, varying from a few inches to over ten feet wide. Occasionally they 
e ABC a~A 
Fig. 17. Northwest side of a pit at North Star mine, Portland East, Ottawa County, Quebec, Canada. 
A, apatite; B, pyroxene; C, feldspar; D, mica. Scale: 1 inch = 10 feet. 
are found widening into bunches almost twenty feet across. The veins 
often show a banded structure and consist of mica and pyroxenite on 
the outside and apatite in the center. The outside bands of the vein;; 
are in some cases composed of a dark, almost black, talcose material. 
A 
Fig. 18. Part of the northeast wall of McLaurin's mine, Templet on, Ottawa County, Quebec, Canada. 
A, apatite; B, pyroxene. Scale: 1 inch = 5 feet. 
In other places the contents of the vein consist of apatite, mica, pyrox- 
enite, and white and flesh or salmon colored calcite, indiscriminately 
(509) 
