Figure 2: Transformational phase diagram of Fe2O3.
From: Structural complexity of simple Fe2O3 at high pressures and temperatures
Figure 2: Transformational phase diagram of Fe2O3. | Nature Communications
From: Structural complexity of simple Fe2O3 at high pressures and temperatures
hematite (α-Fe2O3), Δ-
distorted perovskite (ζ-Fe2O3), 
). The boundary between hematite α-Fe2O3 and 