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Asbestos, Also Known as Mineral WoolAsbestos is one of the most curious and useful substances in the mineral kingdom. In the manufactured state it may not resemble mineral, nevertheless it very properly belongs to the mineral formations. It is only within the last thirty years that it has come into extensive use, and its use is constantly widening. Its use is also one of the most beneficent, besides being a conservator of heat it is also one of the best protections against injury to human beings engaged in foundries where they come in contact with heat and has saved many lives, but it also is a preventative of fires. It is the most perfect non-conductor of heat known and resists action of the most intense heat.Asbestos is one of the great surprises in the mineral kingdom. On account of its finely fibrous, flexible, incombustible character it is spun into yarn and woven into cloth for the clothing of firemen and foundry men who are exposed to heat that would burn ordinary clothing. It is extensively used for theatre curtains and has saved many audiences from the horrors of conflagration. A report by J. S Diller, of the United States Geological Survey, on the production of asbestos in 1913, now in press, shows that while the United States produces littly raw asbestos, it is the largest producer of objects manufactured from asbestos. Canada is the heaviest producer of raw asbestos, and more than half the world’s supply is brought into the United States from Canada and manufactured into various commercial products.In 1913 the United States produced 1,100 short tons. There were two producers in Georgia, both furnishing asbestos of the amphibole type, and one in Arizona is just beginning to produce chrysotile. The difference between the two types is merely in chemical composition.A noteable event of the year in the asbestos industry of the United States has been the opening of this new locality in Arizona, about 30 miles northeast of Globe, for the high-grade chrysotile such as occurs in the depths of the Grand Canyon. It is associated with limestone and in this respect is strongly contrasted with the asbestos of Canada, which is found in serpentine rock, derived from peridotite.The remarkable fiber from Arizona when twisted to a yarn 0.03 of an inch in thickness will support an average
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Leavenworth Echo
Leavenworth, Washington, US
Fri, Jun 12, 1914
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USA 26 Oct 2024
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