In terms of bulk modulus dependency with temperature, we obtained for jeffbenite a value equal to -0.020 GPa/K against an average (experimental) value of − 0.022 GPa/K of pyrope [although this value has a quite significant data scatter in literature going from − 0.0194(30) 43 , to − 0.021(9) 48 , up to − 0.026(4) 47 ].
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Mg<sub>3</sub>Al<sub>2</sub>Si<sub>3</sub>O<sub>12</sub> jeffbenite inclusion in super-deep diamonds is thermodynamically stable at very shallow Earth's depths.
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