Transactions . IS. Mir-rophoto^rMplis x .> (li;irTi. (i()\(\ in fjiJMrtz, Dome Mine. No, 17 . Xo. Hi vvitli iiif;f)ls crossed. No, 18 shows part of .section to right and Ixlow piirt sliowing Nos. 10 and 17. Some Porcupine Gold Quartz Deposits—Hore 177 One specimen (see microphotos Xos. 11 and 12) shows bandsof coarsely crystalline carbonate and quartz in fine grainedquartz and sericite. The coarse quartz, which is remarkablyclear and free from strain effects, fills spaces between earlierformed crystals of carbonates. This quartz is evidently secondaryand yqunger than the carbonates. A
Transactions . IS. Mir-rophoto^rMplis x .> (li;irTi. (i()\(\ in fjiJMrtz, Dome Mine. No, 17 . Xo. Hi vvitli iiif;f)ls crossed. No, 18 shows part of .section to right and Ixlow piirt sliowing Nos. 10 and 17. Some Porcupine Gold Quartz Deposits—Hore 177 One specimen (see microphotos Xos. 11 and 12) shows bandsof coarsely crystalline carbonate and quartz in fine grainedquartz and sericite. The coarse quartz, which is remarkablyclear and free from strain effects, fills spaces between earlierformed crystals of carbonates. This quartz is evidently secondaryand yqunger than the carbonates. Another specimen similar tothe last has a band of remarkably fine grained semi-opaque car-bonates separating the fine and coarse grained portions. (Seemicrophotos Nos. 13 and 14.) The sericite schist at the Hollinger is made up (with theexception of part of the quartz), entirely of secondary the original rock was is not sho^^Tl by the specimens exam-ined. Probably, as Mr. Ivnight has suggested, it wa
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Keywords: ., book, bookcentury1800, booksubjectmineralindustries, bookyear1895
