1 very important aspect to recollect is that silicon carbide is the preferred grit for rock tumbling. The preferred grit for rock tumbling is silicon carbide because of its hardness and talent to wear down and smooth out the rocks effectively. Safety Data Sheet according to Regulation (EC) No. 1907/2006 https://productsincludeboatholder83603.liberty-blog.com/29027986/not-known-factual-statements-about-silicon-carbide-scrap-value