Granulometric and textural analysis of laminar foreset samples from unlithified sets of angular to incipiently tangential cross-strata may be an important tool in reconstructing the depositional history of a sedimentary deposit and differentiating between depositional environments (marine fluvial and eolian) Mechanical size analysis and microscopic investigations were carried out on samples from sets of cross-strata from the Coker Formation (Late Cretaeous; Alabama), Providence Sand (Late Cretaceous; Georgia), Modern coastal sand dune (Saint George Island, Florida) and modern point bar (Ochlockonee River, Florida). Results were found to be consistent with the prevailing model of the hydrodynamic system operating to the lee of a discontinuity in a unidirectional flow or migrating bedform. Also, the model seems to function independently of the fluid medium. Mean grain size of samples taken in a direction perpendicular to the strike of the foreset slope from the coarse and fine grained cross-strata decreased up current in about half the cases and showed no pattern in the rest current in fluvial samples perpendicular to strike of slope from coarse and fine grained cross-strata. However, there is no significant change in sorting for samples from fluvial-marine and eolian deposits. Mean grain size and sorting shows no consistent pattern in samples taken parallel to strike of the foreset slope. Mean roundness decreases up current in fluvial-marine and eolian samples taken perpendicular to strike of the foreset slope from coarse and fine grained cross-strata and increase up current in fluvial samples. In fluvial deposits the coarse grained cross-strata are approximately equal to the fine grained cross-strata in thickness. On the other hand, fluvial-marine and eolian coarse grained cross-strata are up to ten times thicker than the fine grained cross-strata. The set of cross-strata from the Providence Sand showed that non-disk shaped muscovite grains were selectively transported farther down the foreset slope than quartz grains, all else being equal. Also, disc shaped muscovite particles were selectively transported farther down the lee slope than non-disc shaped muscovite grains, all else being equal. Muscovite content increases with decreasing grain size class. There is no relationship between shape of the muscovite grains and grain size class.