Abrasive Grade Pumice Stone Powder is a naturally occurring, highly versatile volcanic ash mineral engineered for industrial, commercial, and technical polishing applications. Formed from super-heated, highly pressurized magma, pumice possesses a unique cellular structure with sharp, porous edges that provide excellent surface abrasion without leaving deep scratches or damaging delicate substrates. It delivers satin, matte, and semi-gloss finishes on stainless steel, aluminum, brass, and copper.