Extended Data Fig. 3: Optical images of other inclusions found in the 1.5 ct diamond.
From: Hydrous peridotitic fragments of Earth’s mantle 660 km discontinuity sampled by a diamond
Inclusion 3 is a cluster of submicron sized inclusions (inc3a), surrounded by pin points that generate a milky appearance (inc3b), which could be octahedral or elongated nano sized inclusions filled with nitrogen rich fluids65. Inclusion 7 and 12 did not show any detectable Raman bands. Inclusion 9 is opaque in the center and close to the mineral assemblage of inclusion 2. Its appearance and Raman spectra (Extended databases) imply that it is likely a ferropericlase phase as the by-product from the decomposed ringwoodite. Inclusion 13 is a polyphasic assemblage without diagnostic Raman spectra, while the individual minerals are too small to be precisely probed by XRD (the shortest dimension is less than 10 μm). Field views of each image from inc3a to inc13 are 2.87, 1.40, 1.60, 0.91, 0.91, 0.96 mm.
