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Spewed up to the surface by a supervolcano that punctured South Africa, this ugly green rock contains minerals formed only under high temperature and pressure conditions, including diamonds! This ultra-rare specimen, shown in its native state, was donated by Museum volunteer Paul Seel.
James Hagadorn, PhD
Tim & Kathryn Ryan Curator of Geology
Kristen A. MacKenzie, MS
Earth Sciences Collections Manager
Nicole Neu-Yagle, MS
Earth Sciences Assistant Collections Manager
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