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Gneiss is a metamorphic rock characterized by distinct banding and relatively little mica and chlorite minerals. Gneiss resembles schist in composition and texture, but schist does not show layering or banding. |
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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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