 ... the greenish tinge. An estimate of the mineral percentages made by applying the Rosiwal method to a camera lucida drawing of a thin section enlarged 40 diameters yields these results with a mesh of 1 inch and a total linear length of 34 inches.  The Chief Commercial Granites of Massachusetts - Page 164by Thomas Nelson Dale - 1908 - 228 pagesFull view - About this book
 | Thomas Nelson Dale - Granite - 1908 - 458 pages
...feldspars, and the cream-colored parts of the feldspars are marked and give the stone a mottled shading. An estimate of the mineral percentages made by applying the Rosiwal method to this specimen, with a mesh of 0.6 inch and total linear length of 20.4 inches, yields these figures:... | |
 | Geological Survey (U.S.) - Geology - 1908 - 1020 pages
...is relatively large. An estimate of the mineral percentages in this granite, by the application of the Rosiwal method to a camera lucida drawing of a thin section enlarged 37 diameters, with a mesh of 1.2 inch and a total linear length of 25.85 inches, yields the following... | |
 | Geological Survey (U.S.) - Geology - 1908 - 270 pages
...feldspars, and the cream-colored parts of the feldspars are marked and give the stone a mottled shading. An estimate of the mineral percentages made by applying the Rosiwal method to this specimen, with a mesh of 0.6 inch and total linear length of 20.4 inches, yields these figures:... | |
 | Geological Survey (U.S.) - Geology - 1909 - 160 pages
...and rare chlorite scales up to 0.22, exceptionally 0.75 millimeter, reenforcing the greenish tinge. An estimate of the mineral percentages made by applying...drawing of a thin section enlarged 40 diameters yields these results with a mesh of 1 inch and a total linear length of 34 inches. Estimated mineral percentages... | |
 | Thomas Nelson Dale - Geology, Economic - 1909 - 158 pages
...and rare chlorite scales up to 0.22, exceptionally 0.75 millimeter, reenforcing the greenish tinge. An estimate of the mineral percentages made by applying...drawing of a thin section enlarged 40 diameters yields these results with a mesh of 1 inch and a total linear length of 34 inches. Estimated mineral percentages... | |
 | George Ferdinand Becker - Petroleum - 1909 - 286 pages
...and rare chlorite scales up to 0.22, exceptionally 0.75 millimeter, reenforcing the greenish tinge. An estimate of the mineral percentages made by applying...drawing of a thin section enlarged 40 diameters yields these results with a mesh of 1 inch and a total linear length of 34 inches. Estimated mineral percentages... | |
 | Geological Survey (U.S.) - Geology - 1910 - 694 pages
...limonite stain, chlorite, calcitc. There is very slight effervescence with the muriatic acid test. An estimate of the mineral percentages, made by applying...Rosiwal method to a camera lucida drawing of a thin sect ion enlarged 40 diameters, yields these results with a mesh of 2 inches and a total linear length... | |
 | Charles Willard Hayes - Coal - 1910 - 764 pages
...Secondary: Calcite, a white mica, chlorite. An estimate of the mineral percentages by the application of the Rosiwal method to a camera lucida drawing of a thin section, enlarged 25 diameters, yields these results with a mesh of 1 inch and a total linear length of 59 inches, from... | |
 | Thomas Nelson Dale, Herbert Ernest Gregory - Granite - 1911 - 698 pages
...oligoclase-andesine) is milk white. Zircon is accessory. Both rocks effervesce with the muriaticacid test. An estimate of the mineral percentages made by applying the Rosiwal method to a camera -lucida enlargement (25 diameters) of a thin section yields these results with a mesh of 0.8 inch and a total... | |
 | Geological Survey (U.S.) - Geology - 1911 - 162 pages
...oligoclase-andesine) is milk white. Zircon is accessory. Both rocks effervesce with the muriaticacid test. An estimate of the mineral percentages made by applying the Rosiwal method to a camera-lucida enlargement (25 diameters) of a thin section yields these results with a mesh of 0.8... | |
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