Coal Dust and Nautural Minerals
                This is from a sample of dust collected from a home balcony
                  near a coal transfer station in southern Britich Columbia
                  during the Fall of 1999.
              
              
                Transmitted Off Crossed Polarized Light and Reflected Darkfield Illumination
                
Definition/Function:
                Significance in the Environment:
                Characteristic Features:
                Associated Particles:
                References:
                Suarez-Ruiz, Isabel and John C. Crelling, APPLIED COAL PETROLOGY:The Role of Petrology
                in Coal Utilization, Elsevier Academic Press,2008.