E. Dillon & Company manufactures rock dust for use in underground coal mines to help prevent the propagation of coal dust explosions.

Our rock dust is mined entirely at our quarry in Swords Creek, VA. The deposit is high quality dolomitic limestone.

Our manufactured rock dust meets and/or exceeds MSHA's "Rock Dust" definition for 30 C.F.R. & 75.2 as it pertains to particle size, silica (SiO₂) and combustible content requirements.

Our rock dust is packaged in 50lb. bags, different sizes of super bags and in bulk quantities.

More detailed information such as Certificate of Analysis (COA) and lab analysis can be obtained by contacting us directly.