Miller, Christopher M. (Mike)
Mine Safety Dust (Rock Dust)
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.
More detailed information such as Certificate of Analysis (COA) and lab analysis can be obtained by contacting us directly.