I've been looking up a few geological items, an area in which I have little expertise, but found a few interesting things. All the photos on this page are terrestrial.
The term "desert pavement" refers to what happens when light material is blown away by wind, and leaves heavier objects behind. It looks to me like Mars is like this, although there seems to be a constant deposition of new dust.
An example on Earth:
I picked up quite a bit from this presentation
Also, check out this picture.
A "ventifact" is a rock shaped by wind, and yes, they can have nice sharp edges. Note in the description in the link that they can easily be mistaken for manmade objects. Let's keep that in mind, okay?
These three below are from Antarctica.
Look at the rock on this page.
The secret words for Mars are "desert pavement" and "ventifact." I'm sure this is all old news to Mars geologists, but it was new to me.
Some geological information