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Smithsonian National Museum of Natural History
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Department of Mineral Sciences

Izalco Volcano

Ultramafic Xenolith Collection

Ultramafic Xenolith

A mantle xenolith in basanite from the Peridot Mine in San Carlos, Arizona. The xenolith contains spinel harzburgite, Cr-diopside clinopyroxenite, and spinel dunite (5¼ x 4¼ x 3") [NMNH 117248-13].

Photography by Ken Larsen.

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