crinding agata mortar - montrogoli it
Laboratory Aids Mortar And Pestle Sets Agate Grey Iron Agate Mortars and Pestles are suitable for grinding and mixing medium and hard substances Very resistant to abrasion and contamination the mortar and pestle are both polished all over Hardness is 7 on Mohs scale compression resistance is 110 kgmm2 and breaking resistance is 210 kgmm2