The low wide coral toward the bottom of the photo is precious red coral (Corallium sp.). These corals are valuable as jewelry.
Precious Red Coral
Image courtesy of NOAA Office of Ocean Exploration and Research, 2016 Deepwater Exploration of the Marianas. Download larger version (jpg, 941 KB).

The low wide coral toward the bottom of the photo is precious red coral (Corallium sp.). These corals are valuable as jewelry.

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