Table A1. Emission Spectra From the ASU Spectral Library Used for Unmixing Class Mineral Sample ID Feldspars Albite 454, WAR-0612 Andesine 434, BUR-240 Andesine 561, WAS-0024 Anorthite 564, BUR-340 Anorthoclase 485, WAR-0579 Bytownite 563, WAR-1384 Labradorite 486, WAR-4524 Labradorite 562, BUR-3080A Microcline 468, BUR-3460 Oligoclase 450, WAR-0234 Oligoclase 476, BUR-060 Pyroxenes Augite 480, HS-119.4B Augite 494, BUR-620 Augite 540, NMNH-119197 Augite 554, DSM-AUG01 Bronzite 439, BUR-1920 Bronzite 541, NMNH-166555 Bronzite 542, NMNH-119793 Bronzite 552, NMNH-120414-1 Bronzite 558, NMNH-93527 Diopside 478, WAR-6474 Diopside 547, NMNH-R15161 Enstatite 458, HS-9.4B Hypersthene 442, NMNH-B18247 Olivines Fayalite 557, WAR-FAY01 Forsterite 441, BUR-3720A Olivine Fo18 959, KI 3354 Olivine Fo39 956, KI 4143 Olivine Fo54 955, KI 3372 Olivine Fo68 953, KI 3115 Glasses Andesite interstitial glass 1046, MEM-5 Dacite interstitial glass 045, MEM-4 K-rich glass 1736, K-rich glass Oxides Hematite 474, BUR-2600 Ilmenite 463, WAR-4119 Phyllosilicates Chlorite 466, WAR-1924 Illite 596, IMt-2 Kaolinite 571, KGa-1b Montmorillonite 583, SCa-3 Montmorillonite (Ca) 582, STx-1 Montmorillonite (Na) 585, SWy-2 Nontronite 588, WAR-5108 Saponite 579, Saponite Smectite 592, SWa-1 Silica-rich Cristobalite 1968, Cristobalite Opal-A 1966, Opal-A Opal-CT 1972, Opal-CT Quartz 1969, Quartz Zeolite Heulandite 1840, agu_heu1 Stilbite 1841, agu_stil