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a. The general name for any kind of inert dust used in rendering coal dust
inert or in filling rock-dust barriers. Equivalent to the British stone
dust. Rice, 2
b. The dust produced in mines by blasting, drilling, shoveling, and
handling rock. Rock dust in suspension varies in particle size and
composition. The most dangerous dusts are silica, sericite, and asbestos;
but all fine dusts are health hazards when inhaled. The smaller sizes, 10
microns and less, are more dangerous than the larger sizes. Wet drills,
sprays, water infusion, and ample ventilation are employed to reduce the
dust menace. See also: dust consolidation;
dust-free conditions;
stone dust; stone-dust barrier. Nelson
Source:
Dictionary of Mining, Mineral, and Related Terms
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