Spectrum VisNIR reflectance spectrum of non-irradiated NWA 4968 pellet Spectrum VisNIR reflectance spectrum of irradiated NWA 4968 pellet (He+, 1E16 ions/cm2) Spectrum VisNIR reflectance spectrum of irradiated NWA 4968 pellet (He+, 3E16 ions/cm2) Spectrum VisNIR reflectance spectrum of irradiated NWA 4968 pellet (He+, 6E16 ions/cm2)

Spectrum VisNIR reflectance spectrum of non-irradiated NWA 6909 pellet Spectrum VisNIR reflectance spectrum of irradiated NWA 6909 pellet (He+, 1E16 ions/cm2) Spectrum VisNIR reflectance spectrum of irradiated NWA 6909 pellet (He+, 3E16 ions/cm2) Spectrum VisNIR reflectance spectrum of irradiated NWA 6909 pellet (He+, 6E16 ions/cm2)

Spectrum VisNIR reflectance spectrum of non-irradiated NWA 7234 pellet Spectrum VisNIR reflectance spectrum of irradiated NWA 7234 pellet (He+, 1E16 ions/cm2) Spectrum VisNIR reflectance spectrum of irradiated NWA 7234 pellet (He+, 3E16 ions/cm2) Spectrum VisNIR reflectance spectrum of irradiated NWA 7234 pellet (He+, 6E16 ions/cm2)