Also, Lunar dust is extremely, extremely abrasive. Since there is no atmosphere, no wind, no elements, the dust never really breaks down. So when a meteor crashes into the surface it ejects the fine, rough particles into the air, which then settle. These particles are extremely rough.
On earth wind blowing the dust, rain, and general atmospheric conditions help break down and smooth out the dust, kinda like when you were a kid and used one of those rock polishing machines, stick rough rocks in, let it run for a while and the rocks come out smooth.
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Paul @ Mar 26th 2008 8:15PM
Also, Lunar dust is extremely, extremely abrasive. Since there is no atmosphere, no wind, no elements, the dust never really breaks down. So when a meteor crashes into the surface it ejects the fine, rough particles into the air, which then settle. These particles are extremely rough.
On earth wind blowing the dust, rain, and general atmospheric conditions help break down and smooth out the dust, kinda like when you were a kid and used one of those rock polishing machines, stick rough rocks in, let it run for a while and the rocks come out smooth.