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riebeckite
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Riebeckite (of the crocidolite variety) from South Africa.
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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riebeckite: Related Content

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Riebeckite (of the crocidolite variety) from South Africa.
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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