 ... 3. The color to which the clay burns. This may be judged approximately, for clays with several per cent. or more of ferric oxide will burn red, provided the iron is evenly and finely distributed in the clay, and there is no excess of lime. The above...  Final Report - Seite 50von New Jersey Geological Survey, New Jersey. State Geologist - 1904Vollansicht - Über dieses Buch
 | 1886 - 1050 Seiten
...then a buff product results, provided the clay is only heated to incipient fusion or vitrification. The above conditions will be affected by a reducing atmosphere in burning or of sulphur in the fire gases. 4. Clays with a large amount of combined water sometimes exhibit a tendency... | |
 | Geological Survey (U.S.) - 1898 - 726 Seiten
...to 3, then a buff product results, provided the clay is heated to incipient fusion or vitrifaction. The above conditions will be affected by a reducing...in burning or the presence of sulphur in the fire gases. (4) Clays with a large amount of combined water sometimes exhibit a tendency to crack in burning.... | |
 | 1900 - 756 Seiten
...to 3, then a buff product results, provided the clay is heated to incipient fusion or vitrification. The above conditions will be affected by a reducing atmosphere in burning or the presence of sulfur in the fire gases. 4 The quantity of combined water. Clays with a large amount of combined water... | |
 | United States. Philippine Commission (1900-1916) - 1901 - 608 Seiten
...show a percentage of silica, alumina, and water approaching quite closely to those of kaolinite. " 2. The refractoriness of the clay for, other things...in burning, or the presence of sulphur in the fire gases. "4. The quantity of water. Clays with a large amount of chemically combined water sometimes... | |
 | Maryland Geological Survey - 1902 - 692 Seiten
...3, then the buff product results, provided the clay is heated to incipient fusion or vitrification. The above conditions will be affected by a reducing...in burning or the presence of sulphur in the fire gases. 4. The quantity of combined water. Clays with a large amount of combined water sometimes exhibit... | |
 | Maryland Geological Survey - 1902 - 690 Seiten
...3, then the buff product results, provided the clay is heated to incipient fusion or vitrification. The above conditions will be affected by a reducing...in burning or the presence of sulphur in the fire gases. 4. The quantity of combined water. Clays with a large amount of combined water sometimes exhibit... | |
 | Maryland Geological Survey - 1902 - 700 Seiten
...3, then the buff product results, provided the clay is heated to incipient fusion or vitrification. The above conditions will be affected by a reducing...in burning or the presence of sulphur in the fire gases. 4. The quantity of combined water. Clays with a large amount of combined water sometimes exhibit... | |
 | Maryland Geological Survey - 1902 - 688 Seiten
...3, then the buff product results, provided the clay is heated to incipient fusion or vitrification. The above conditions will be affected by a reducing...in burning or the presence of sulphur in the fire gases. 4. The quantity of combined water. Clays with a large amount of combined water sometimes exhibit... | |
 | New Jersey Geological Survey - 1904 - 708 Seiten
...presence is frequently neglected. Since the sulphur trioxide, carbon dioxide and water are volatile at a red heat, they are often determined collectively and...until their weight is constant. See under Moisture. crack in burning, and may also show high shrinkage. If kaolinite is the only mineral present containing... | |
 | New Jersey Geological Survey, New Jersey. State Geologist - 1904 - 716 Seiten
...dry1 clays is chiefly chemically combined water. The ferric oxide, lime, magnesia, potash and soda art termed the fluxing impurities, and their effects are...until their weight is constant. See under Moisture. 1 See Lime in this chapter. crack in burning, and may also show high shrinkage. If kaolinite is the... | |
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