Micaceous soils have low soil strength and are susceptible to accelerated erosion and landslides. These soils can be identified in the field, but quantification of mica and determining a relationship of mica content to interpretive problems remains elusive. A single particle size fraction is commonly quantified and this value is equated to the mica content in the total sand and silt. Five soil samples from the Piedmont physiographic province of North Carolina were selected and the mica was quantified by grain count (optical microscopy) in the six fractions between 0.02-2.0mm and by magnetic separation for mica quantification by weight. The objective of this research was to examine the distribution of mica across all particle size fractions, to determine the importance of quantifying multiple fractions, and to evaluate the relationships among weight, volume, and grain count. Grain counts show that mica varied from 46-82% across the five samples. Mica generally was more abundant in the finer fractions (coarse silt to fine sand). Established methodologies to convert grain count data to weight percentage failed to match the measured weight percentage, though the current (2003) conversion used in Soil Taxonomy is in reasonable agreement.