Quartz Grain Mining Mortar

How to measure sand particle size.Use a mortar and pestle to break up the sample, then pass the remains through a 2 mm sieve.Combine the sample with 30 distilled water, boil and add calgon sodium hexametaphosphate, which aids in separation.Shake and let sit for six hours.Wash clay and silt through a 62.5 mm sieve.