The course will begin with a review of the classification of sedimentary rocks (SedRx) with a focus on their origin (from protolith to depositional environment). Next, the classification of minerals commonly found in SedRx will be discussed with a focus on which minerals might be expected in various types of SedRx. For instance, what minerals might be expected in siliciclastic rocks and what minerals might be expected in carbonate rocks? The crystal structure, chemistry, and properties of pertinent mineral groups will be discussed with a focus on how the minerals might affect reservoir quality (RQ), diagenetic trends, and production issues. Clay minerals (origin, classification, chemistry, properties, and effects on RQ) will be a particular focus. The effects of minerals on well log evaluation of porosity (where grain density is paramount) and water saturation (where cation exchange capacity is paramount) will be discussed. Methods for studying and interpreting mineralogy (thin section, XRD, SEM, XRF, standard well logs, special well logs …) will be reviewed with a focus on how this information might be used in exploration and production. Handling differences in matrix components that might exist between conventional and unconventional reservoir rocks (spec. “organic matter”) will be addressed.