Word: quartzes
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...richest lead and zinc beds in the U. S. There a score of "TriState" towns house 100,000 miners and their families. Typical is Zincville in Ottawa County, Okla. Its battered shacks, pieced together out of tar paper and packing cases, nestle close to glittering mountains of "chat," or quartz dust, the "offal of the mines."On blustery days, wind whips and swirls the stinging quartz dust through the streets and into the houses. Constant inhalation of quartz dust causes silicosis...
...tiny silica or quartz particles which cause silicosis are about 3/25,000 of an inch in size. They irritate the lungs, cause formation of small, stony nodules, which bring about shortness of breath, a dry cough, pain in the chest. Silicosis alone is not serious, painful or disabling. Essentially it is just a case of dirty lungs. But silicotics are extraordinarily susceptible to tuberculosis, frequently die from it. Dust from "chat" piles, according to the Kansas State Board of Health, is a potential menace to all Tri-State inhabitants. Only ways to prevent silicosis in the mines...
...powerful atom-smasher, one of the two biggest in the world. The other is being readied at East Pittsburgh by Westinghouse Electric. Last week, after years of planning and construction, the Carnegie monster started its first test runs, hurling streams of protons (nuclei of hydrogen atoms) into a quartz plate at 5,000,000 volts...
Although some varieties of rock were observed to become plastic and flow under relatively low pressure, quartz remained brittle under the very highest confining and differential pressures. Studies of quartz, one of the most common minerals, are vital to investigation of conditions underground. Prior to these tests it was thought that quartz might become plastic udder the high pressures...
...fracture of quartz into needles under stress of natural rock deformation was duplicated in the laboratory tests and observations were made of the crystallographic details of these fractures...