To make chalk, limestone is first quarried, generally by an open pit quarry method. Next, the limestone must be crushed. Primary crushing, such as in a jaw crusher, breaks down large boulders; secondary crushing pulverizes smaller chunks into pebbles.
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products sand, stone, gravel, limestone, screenings toronto. crusher run limestone.this material is crushed limestone with fines used under patio stones and bricks.this product a screened or washed sand and is used for winter ice control mixed with road salt .nnect with us.