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CLAYSTONE Claystone is a clastic sedimentary rock. It is composed of very fine particles (clay sized, less than 1/256 mm) which have become cemented into a hard rock. Claystone is distinguished from a mudstone by the mudstone's softening upon exposure to water. A claystone is also distinct from a clay shale which has fine layers that easily split. |
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See Steve's video interview about asteroid capture at Moonandback: Part 1 Part 2 Part 3 |
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See Steve's blog Ramblings On The Future Of Humanity (recent post) A Project Plan for Space Based Solar Power
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