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STONE,CRUSHED for FSG 56

Fragments of quarried rock obtained by crushing; most uses require screening to specified sizes. Washing may be necessary. Used as aggregate for concrete, as railroad ballast, in highway construction, sewage filter media, and the like. Specific uses are in part dependent on the chemical composition of the rock. In general, for construction purposes it consists of sound, tough, durable fragments free from too many flat, elongated, soft, or disintegrated pieces.