 The mica occupies various positions in the pegmatite. Where the rock has a typical granitic texture, the mica may be found evenly distributed through it. More commonly the larger crystals will be found either in clusters at intervals through the "vein,"...  Bulletin - Page 231922Full view - About this book
 | Good Roads Institute, Chapel Hill, N.C. - Roads - 1897 - 1172 pages
...occupies various positions in the pegmatite. Where the rock has a typical granitic texture, the mica may be found evenly distributed through it. More commonly...pegmatite, the mica occurs on either or both sides of it, beiug in places partly embedded in the quartz or occupying any of the positions noted above in the... | |
 | Geology - 1907 - 1026 pages
...occupies various positions in the pegmatite. Where the rock has a typical granitic texture, the mica may be found evenly distributed through it. More commonly...pegmatite, the mica occurs on either or both sides of it, being in places partly embedded in the quartz or occupying any of the positions noted above in the... | |
 | Geology, Economic - 1907 - 532 pages
...occupies various positions in the pegmatite. Where the rock has a typical granitic texture, the mica may be found evenly distributed through it. More commonly...pegmatite, the mica occurs on either or both sides of it, being in places partly embedded in the quartz or occupying any of the positions noted above in the... | |
 | Geological Survey (U.S.) - Geology - 1907 - 532 pages
...occupies various positions in the pegmatite. Where the rock has a typical granitic texture, the mica may be found evenly distributed through it. More commonly...pegmatite, the mica occurs on either or both sides of it, being in places partly embedded in the quartz or occupying any of the positions noted above in the... | |
 | United States - 1908 - 916 pages
...places partly connected by streaks of small crystals, or along one or both walls of the pegmatite. Where there is a quartz streak within the pegmatite, the mica occurs on either or both sides ot it, being partly embedded in the quartz or occupying any of the positions noted above in the remaining... | |
 | United States. Bureau of Mines - Digital images - 1908 - 906 pages
...places partly connected by streaks of small crystals, or along one or both walls of the pegmatite. Where there is a quartz streak within the pegmatite, the mica occurs on either or botn sides ot it, being partly embedded in the quartz or occupying any of the positions noted above... | |
 | United States - 1907 - 1200 pages
...occupies various positions in the pegmatite. Where the rock has a typical granitic texture, the mica may be found evenly distributed through it. More commonly...pegmatite, the mica occurs on either or both sides of it, being in places partly embedded in the quartz or occupying any of the positions noted above in the... | |
 | Mineral industries - 1908 - 648 pages
...places partly connected by streaks of small crystals, or along one or both walls of the pegmatite. Where there is a quartz streak within the pegmatite, the mica occurs on either or both sides of it, being partly embedded in the quartz or occupying any of the positions noted above in the remaining... | |
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