Large rocks and agglomerated types of sample materials are seldom of suitable size for accommodation in SpectroMill® Ball Pestle Impact Grinder vials or GyralGrinder® comminution vessels. Quite often it is necessary to first crush a sample into smaller pieces. Simply place the sample in the mortar chamber. Insert the pestle and repeatedly raise and lower the pestle with controlled force. The contained sample is mechanically crushed with each downward stroke. Safety glasses are recommended.
Note: Not guaranteed against chipping. Safety goggles and personal protective wear are recommended.