[blam]

"A very very very fine powder can act just like a liquid, thats what im guessing is happening here."

I heard them describe it as being like talcum powder. I have often wondered why there are sharp edged rocks on Mars after reading about 200 mph dust storms there.

[Ichneumon]

I have often wondered why there are sharp edged rocks on Mars after reading about 200 mph dust storms there.

The wind storms can be high velocity, but Mars' atmosphere is very thin, so the erosion effect isn't as strong as one might think.