Fig. 10

Raman spectra of HYD-1. (a) Hematite (Fig. 5b) (b) Hematite (Fig. 5d). (c) Reference Raman spectrum of hematite (Hematite, RRUFF ID: R040024). (d) ε-Fe2O3 (Fig. 5f) e) Zircon (Fig. 6g). (f) Reference Raman spectrum of zircon (Zircon, RRUFF ID: R050034). (g) Anorthite and quartz ( Fig. 6b) (h) Reference Raman spectrum of anorthite (Anorthite,RRUFF ID:R050104). (i) Reference Raman spectrum of quartz (Quartz,RRUFF ID:R040031). (j) Mullite (Fig. 6d) (k) Reference Raman spectrum of mullite (Mullite,RRUFF ID:R141101).