Editing Aeolian processes (section)

===Attrition===
Attrition is the wearing down by collisions of particles entrained in a moving fluid.{{sfn|Jackson|1997|loc="attrition"}}<ref name=Leeder2011/> It is effective at rounding sand grains and at giving them a distinctive ''frosted'' surface texture.<ref>{{cite journal |last1=Margolis |first1=Stanley V. |last2=Krinsley |first2=David H. |title=Submicroscopic Frosting on Eolian and Subaqueous Quartz Sand Grains |journal=Geological Society of America Bulletin |date=1971 |volume=82 |issue=12 |pages=3395 |doi=10.1130/0016-7606(1971)82[3395:SFOEAS]2.0.CO;2}}</ref>

Collisions between windborne particles is a major source of dust in the size range of 2-5 microns. Most of this is produced by the removal of a weathered [[clay]] coating from the grains.<ref name=Leeder2011>{{cite book |last1=Leeder |first1=M. R. |title=Sedimentology and sedimentary basins : from turbulence to tectonics |date=2011 |publisher=Wiley-Blackwell |location=Chichester, West Sussex, UK |isbn=9781405177832 |edition=2nd |pages=24–25}}</ref>