Fech fech (Arabic: فش فش) is a very fine powder caused by the erosion of clay-limestone terrain and it is most commonly found in deserts. It consists of a surface horizon of pulverized soil with low particle cohesion protected under a thin crust.
Fech fech (Arabic: فش فش) is a very fine powder caused by the erosion of clay-limestone terrain and it is most commonly found in deserts. It consists of a surface horizon of pulverized soil with low particle cohesion protected under a thin crust.
Source: Wikipedia "Fech fech" · CC BY-SA 4.0
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