Crushed Stone and Gravel Sizes, Chart and Grades
However, to emphasize, you deserve to know that stone 57 gravel is about ¾″ in size with reasonably uniform size while stone 67 gravel is less than ¾″, usually ⅓ to nearly ¾ an inch. However, sizes may vary but don't have fine or dust. Crushed stone #411. Crushed stone #411 has similar sizes as stone #57.