Spectrum Optical constants of Mg-silicate glass with pyroxene stoichiometry from UV to FIR Spectrum Optical constants of Mg-Fe-silicate glass with pyroxene stoichiometry, Fe content 0.05, from UV to FIR Spectrum Optical constants of Mg-Fe-silicate glass with pyroxene stoichiometry, Fe content 0.2, from UV to FIR Spectrum Optical constants of Mg-Fe-silicate glass with pyroxene stoichiometry, Fe content 0.3, from UV to FIR Spectrum Optical constants of Mg-Fe-silicate glass with pyroxene stoichiometry, Fe content 0.4, from UV to FIR Spectrum Optical constants of Mg-Fe-silicate glass with pyroxene stoichiometry, Fe content 0.5, from UV to FIR Spectrum Optical constants of Mg-Fe-silicate glass with pyroxene stoichiometry, Fe content 0.6, from UV to FIR Spectrum Optical constants of Mg-Fe-silicate glass with olivine stoichiometry, Fe content 0.5, from UV to FIR Spectrum Optical constants of Mg-Fe-silicate glass with olivine stoichiometry, Fe content 0.6, from UV to FIR