Crystal structure CIF fetched from Materials Project for mp-617291
Phase diagram of Mn5Ge3; eabovehull: 0.000000 eV/atom; predicted_stable: True
After C14 Laves phases failed the stability gate, the next screening direction is Cu₂Sb-type and Nowotny phases — experimentally anchored, Mn-rich, and structurally uniaxial.