Crushed Stone: Line, Granite, Traprock and More - GeologyMany types of crushed stone: Crushed stone is not a "standard commodity." It is made by mining one of several types of rock such as line, granite, trap rock.granite crusher stone,Crushed Stone Grades: A Complete Guide - Braen StoneMay 10, 2013 . Check out this guide to see what crushed stone grades are best for your . Line; Traprock; Washed gravel; Granite; Argillite; Quartzite.
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