...in the rough slate, but by grinding and decantation it may be separated from its impurities. Hies " in summing up the facts obtainable from the ultimate...silica, alumina and water, approaching quite closely to thoce of kaolinite. 2. The refractoriness of the clay for, other things being equal, the greater the...

...the rough state, but by grinding and décantation it may lie separated from ite impurities. Kies " in summing up the facts obtainable from the ultimate...High-grade clays show a percentage of silica, alumina nnd water, approaching quite closely to those of kaolinite. 2. The refractoriness of the clay for,...

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...that there may be exceptions to every case, which do not necessarily render the conclusions worthless. 1. The purity of the clay, showing the proportions...silica, alumina, combined water and fluxing impurities present. High grade clays often show a percentage of silica, alumina and chemically combined water...

...that there may be exceptions to every case, which do not necessarily render the conclusions worthless. 1. The purity of the clay, showing the proportions...silica, alumina, combined water and fluxing impurities present. High grade clays often show a percentage of silica, alumina and chemically combined water...

...the clay, showing proportions of silica, alumina, combined water and fluxing impurities. High grade clays show a percentage of silica, alumina, and water, approaching quite closely to those of kaolin. "2. The refractoriness of the clay, for other things being equal, the greater the total sum...

...the clay, showing proportions of silica, alumina, combined water and fluxing impurities. High grade clays show a percentage of silica, alumina, and water, approaching quite closely to those of kaolin. "2. The refractoriness of the clay, for other things being equal, the greater the total sum...

...the clay, showing proportions of silica, alum.ua, combined water and fluxing impurities. High grade clays show a percentage of silica, alumina, and water, approaching quite closely to those of kaolin. "2. The refractoriness of the clay, for other things being equal, the greater the total sum...

...elements in it evenly distributed, and not forgetting that there may be numerous exceptions to every case: "(1) The purity of the clay, showing the proportions...silica, alumina, combined water, and fluxing impurities present. High grade clays often show a percentage of silica, alumina, and chemically combined water,...

...elements in it evenly distributed, and not forgetting that there may be numerous exceptions to every case: "(1) The purity of the clay, showing the proportions...silica, alumina, combined water, and fluxing impurities present. High grade clays often show a percentage of silica, alumina, and chemically combined water,...