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siliceous rock
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Two examples of siliceous rock: chert (left), and flint. noncarbonate, nonclastic sedimentary rocks
Quizzes
Basalt sample returned by Apollo 15, from near a long sinous lunar valley called Hadley Rille. Measured at 3.3 years old.
(Bed) Rocks and (Flint) Stones
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Small, white rat (genus Rattus) on a glass table. (rodent, laboratory, experiment)
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July, 2006, Launch of Space Shuttle Discovery STS-121. See attached for full caption information.
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Photos

Two examples of siliceous rock: chert (left), and flint.
noncarbonate, nonclastic sedimentary rocks
See All Images →

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Related Quizzes and Features

Quiz
Basalt sample returned by Apollo 15, from near a long sinous lunar valley called Hadley Rille. Measured at 3.3 years old.
(Bed) Rocks and (Flint) Stones