ABSTRACTIn this study three sets of scanning electron micrographs are presented: (a) after grinding of quartz crystals in a rotating rock mill, (b) after (a) plus aqueous transportation of two durations (600 and 1000 hours), and (c) after (a) plus eolian transportation of three durations (5, 50 and 100 hours). Sand composition were mixed according to the size distributions of certain Polish river and dune sands. Each of the two compositions was run in its respective laboratory apparatus.The original ground quartz grains demonstrate the effect of the shearing motion of the millplates. The surfaces of these grains show conchoidal fractures known as“glacial”features, indicating that natural grains with these features are formed in an ice with a shearing motion.In the experiment on aqueous transportation formerly reported mechanical V-shaped patterns were formed. The abrasion of the grains was slight.In the eolian experiment the rounding of the corners of the grains was greater than in the aqueous experiment. There was a deposition of fragments on the larger grains in the eolian experiment. Upturned plates are noted as well as what may be small molten and recrystallized quartz fragments.