Fall 2023 - Volume 59, Issue 3
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Figure 1. Mineral inclusions in diamond. This connected pair of green clinopyroxene and orange garnet indicates that diamond growth occurred within an eclogitic mantle host rock. Photomicrograph by Nathan Renfro; field of view 2 mm.
Eclogite: Diamond-Encrusted Ancient Seafloor

Explores eclogitic diamonds, which make up a significant portion of the gem diamond market, and what they reveal about Earth’s dynamic processes.

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