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carbuncle
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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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almandine
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carbuncle

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History

carbuncle, in mineralogy, a deep red, cabochon-cut almandine, which is an iron aluminum garnet. See almandine.

This article was most recently revised and updated by John P. Rafferty.