Octagonal mortar is made of naturally hard agate stone; 6.5 hardness on Mohs scale. Features highly polished grinding surface for optimal results. Physical dimensions have a stated tolerance of ±3mm. Autoclavable. Sold as a set. MORE + LESS -. $ 118.00 - $ 1,516.50USD / Set of 1. 6 variations of this product are available.
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