Mg3Al2Si3O12 jeffbenite inclusion in super-deep diamonds is thermodynamically stable at very shallow Earth's depths

F Nestola, M Prencipe, D Belmonte - Scientific Reports, 2023 - nature.com
Jeffbenite (having the same chemical composition of pyrope,~ Mg3Al2Si3O12, and also
known as TAPP phase) is a mineral inclusion only found in diamonds formed between about …

Thermoelastic Properties of Fe3+‐Rich Jeffbenite and Application to Superdeep Diamond Barometry

F Qin, F Wang, JR Smyth, D Zhang, J Xu… - Geophysical …, 2024 - Wiley Online Library
Abstract Jeffbenite (Mg3Al2Si3O12) is a tetragonal phase found in so far only in superdeep
diamonds, and its thermoelastic parameters are a prerequisite for determining entrapment …