Manufacturer:United Scientific Supplies Family
Part #:UNITED TSI-MPA
Octagonal mortar and pestle sets feature highly polished grinding surfaces.
Made of naturally hard agate stone (6.5 on Moh's Scale). For use in
laboratories demanding contamination-free results. Physical dimensions have
a tolerance of +/- 3mm. Note that the natural agate material causes surface
pattern variations in finished mortars and pestles.