 Diatomaceous, or infusorial earth, resembles chalk or clay in its physical properties, but can be distinguished at once from chalk by the fact that it does not effervesce when treated with acids. It is generally white or gray in color, but may be brown...  United States Congressional Serial Set - Page 6201908Full view - About this book
 | Mineral industries - 1909 - 1124 pages
...is mined and shipped to all parts of the Avorld. Heretofore, infusorial earth has been largely used for abrasive purposes, in the form of polishing powders, scouring soaps, etc., and in the manufacture of dynamite, for which purpose it acts as an absorbent of nitroglycerine. This... | |
 | Missouri. Bureau of Labor Statistics - Agricultural productivity - 1914 - 948 pages
...chalk by the fact that it does not effervesce when treated with acids. It is generally white or gray in color, but may be brown, or even black when mixed...it is a variety of opal. Heretofore the principal use of infusorial earths have been largely for abrasive purposes, in the form of polishing powders,... | |
 | Oklahoma Geological Survey - Geology - 1914 - 56 pages
...recently considered as a commercial commodity, has varied and extensive uses. It is at present used largely for abrasive purposes in the form of polishing powders, scouring soaps, etc., but, because of its pumaceous condition, it is used in the manufacture of dynamite, and as a holder of nitroglycerine;... | |
 | Frank Buttram - Volcanic ash, tuff, etc - 1914 - 420 pages
...recently considered ae a commercial •commodity, has varied and extensive uses. It is at present used largely for abrasive purposes in the form of polishing powders, scouring soaps, •etc., but, because of its pumaceous condition, it is used in the manufacture of dynamite, and as a holder of nitroglycerine;... | |
 | Oklahoma Geological Survey - Geology - 1914 - 52 pages
...recently considered as a commercial commodity, has varied and extensive uses. It is at present used largely for abrasive purposes in the form of polishing powders, scouring soaps, etc., but, because of its pumaceous condition, it is used in the manufacture of dynamite, and as a holder of nitroglycerine;... | |
 | Geological Survey of Canada - Geology - 1916 - 822 pages
...and when air-dried it is much lighter in weight than clay. It is generally white or grey in colour, but may be brown or even black when mixed with much organic matter. Infusorial earth is made up of minute flinty skeletons of certain aquatic forms of plant life known... | |
 | Mines and mineral resources - 1917 - 992 pages
...chalk by the fact that it does not effervesce when treated with acids. It is generally white, or gray in color, but may be brown or even black when mixed with much organic matter. It is made up of remains of minute aquatic plants and is composed chemically of hydrous silica. Owing... | |
 | Oklahoma Geological Survey - Geology - 1926 - 80 pages
...recently considered as a commercial commodity, has varied and extensive uses. It is at present used largely for abrasive purposes in the form of polishing powders, scouring soaps, etc., but, because of its pumaceous condition, it is used in the manufacture of dynamite, and as a holder of nitroglycerine;... | |
 | Charles Newton Gould, John Tipton Lonsdale, Edward Wilber Berry, Ernest Slocum, Fred Carter Tracy - Geology - 1926 - 80 pages
...recently considered as a commercial commodity, has varied and extensive uses. It is at present used largely for abrasive purposes in the form of polishing powders, scouring soaps, etc., but, because of its pumaceous condition, it is used in the manufacture of dynamite, and as a holder of nitroglycerine;... | |
 | United States. Department of the Interior - Public lands - 1917 - 718 pages
...chalk by the fact that it does not effervesce when treated with adds. It is generally white or gray in color, but may be brown or even black when mixed with much organic matter. Diatomaceous earth is made up of .remains of minute aquatic plants and is composed, chemically, of... | |
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