A Preliminary Report On a Part of the Clays of Georgia
A Preliminary Report On a Part of the Clays of Georgia
George Edgar Ladd
The book A Preliminary Report On a Part of the Clays of Georgia was written by author George Edgar Ladd Here you can read free online of A Preliminary Report On a Part of the Clays of Georgia book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is A Preliminary Report On a Part of the Clays of Georgia a good or bad book?
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A hand specimen, from the average sample collected, is cream- colored, very fine-grained and friable. The cavities, spoken of, have occasionally a dark lining of a carbonaceous material; and this suggests, as a possible explanation of their occurrence, that they originated by the decomposition, and removal by solution, of organic remains, either animal or vegetable. With the hand lens, neither quartz nor mica are discernible; and, under the microscope, no quartz can be distinguished; while musc...ovite is of extreme minuteness, and rare. A chemical analysis of this clay gave the following results: Hygroscopic Moisture . I i . ; . . . . . 0. 21 Combined Water, Carbon Di-oxide Etc. . . 14. 52 Combined Silica 42. 79 Free Silica, or Sand 82 Alumina 40. 42 Ferric Oxide 70 Potash trace Lime 00. 37 Soda . 83 Total 100. 45 Clay Base 97. 73 Fluxing Impurities 1. 90 This clay absorbs 80 per cent, of its weight' of water. Its specific gravity ranges from 1. 89 to 1. 94. Briquettes shrink, on drying, 8 per cent, of their length, and an additional 4 per cent.
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