 The atigite occurs both in simple individuals and in polysomatic masses. It exhibits the usual marginal alteration to hornblende and there is besides a certain amount of chlorite. Original magnetite is frequently surrounded by a margin of secondary biotite....  Proceedings of the Canadian Institute - Page 183by Canadian Institute - 1888Full view - About this book
 | Canadian Institute - 1888 - 308 pages
...larh-sha[>ed crystals, which are generally so cloudy as to obliterate the twinning Fig. 4. Polysomatic grain in most cases. The augite occurs both in simple individuals...feldspar, and as the latter is much decomposed, would seem of to replace it as a partial pseudomorph, but J* apatite needles of the same aspect as those —the... | |
 | Newton Horace Winchell - 1888 - 436 pages
...lath-shaped crystals, which are generally so cloudy as to obliterate the twinning in most cases. The atigite occurs both in simple individuals and in polysomatic...feldspar, and as the latter is much decomposed, would seem to replace it as a partial pseudomorph, but apatite needles of the same asPCCt M thoSe which OCcur... | |
 | Newton Horace Winchell - 1888 - 446 pages
...long, rather stout, lath-shaped crystals, which are generally so cloudy as to obliterate the twinning in most cases. The augite occurs both in simple individuals...Micropegmatitic quartz is abundant. It is often intimately intcrgrown with the feldspar, and as the latter is much decomposed, would seem to replace it as a partial... | |
 | Newton Horace Winchell - 1888 - 458 pages
...long, rather stout, lath-shaped crystals, which are generally so cloudy as to obliterate the twinning in most cases. The augite occurs both in simple individuals...biotite. Micropegmatitic quartz is abundant. It is often intimatelv intergrown with the feldspar, and as the latter is much decomposed, would seem to replace... | |
 | Geological Survey of Canada - 1889 - 738 pages
...long, rather stout, lath-shaped crystals, which arc generally so cloudy as to obliterate the twinning in most cases. The augite occurs both in simple individuals...is abundant. It is often intimately intergrown with tho felspar, and, as the latter is much decomposed, would seem to replace it as a partial pseudomorph,... | |
 | 1908 - 712 pages
...towards the center. AC Lawson,34 describing diabase dikes of the Rainy Lake region, Canada : (P. 209) " Micropegmatitic quartz is abundant. It is often intimately...feldspar, and as the latter is much decomposed, would seem to replace it as :> partial pseudomorph, but apatite needles of the same aspect as those which occur... | |
 | 1908 - 1244 pages
...* region, Canada : (P. 209) " Micropegmatitic quartz is abundant. It is often intimately inn grown with the feldspar, and as the latter is much decomposed, would seem replace it as a partial pseudomorph, but apatite needles of the same aspect those which occur as inclusions... | |
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