Bulletin of the United States Geological Survey--The Nature and Origin of Deposits of Phosphate and Lime . PENROSE.] APATITES OF CANADA. 29 of green hornblende and white feldspar, which forms a ridge about onehundred yards wide parallel to the strike of the country gneiss. Tocomplete the list of rocks found in the apatite districts it is necessaryto mention the large veins of crystalline calcite, which often containserpentine and chrysotile. In the occurrence of these veins this Cana-dian apatite region is in marked contrast with that of Norway, wherelittle calcareous matter is Fig. 9.
Bulletin of the United States Geological Survey--The Nature and Origin of Deposits of Phosphate and Lime . PENROSE.] APATITES OF CANADA. 29 of green hornblende and white feldspar, which forms a ridge about onehundred yards wide parallel to the strike of the country gneiss. Tocomplete the list of rocks found in the apatite districts it is necessaryto mention the large veins of crystalline calcite, which often containserpentine and chrysotile. In the occurrence of these veins this Cana-dian apatite region is in marked contrast with that of Norway, wherelittle calcareous matter is Fig. 9. Pyroxene surface, Star Hill, Union mine, Portland, East Ottawa County, Quebec, , apatite; B, pyroxene; C, feldspar. Scale: 1 inch = 8 feet. The apatite of Canada is found occurring in a great variety of T. Sterry Hunt regards most of the workable deposits as veins,but he thinks there are also some deposits which occur in beds. He hasdiscovered small masses of apatite marking the lines of stratification in JW -- / \ < K ? . * > A
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