Optical Spectra of Andalusite, Al₂SiO₅

• Faye GH, Harris DC (1969) On the colour and pleochroism in andalusite from Brazil. Canadian Mineralogist 10, 47-56.

• Smith G, Strens RGJ (1976) Intervalence transfer absorption in some silicate, oxide and phosphate minerals. In: Strens, RGJ, ed, The Physics of Minerals and Rocks. Wiley, New York. pp. 583-612 
• Abs-Wurmbach I, Langer K, Tillmanns E (1977) Structure and polarized absorption spectra of Mn³⁺-substituted andalusites (viridines). Naturwissenschaften 64, 527-528. 
• Smith G (1977) Low-temperature optical studies of metal-metal charge-transfer transitions in various minerals. Canadian Mineralogist 15, 500-507. 
• Hålenius U (1978) A spectroscopic investigation of manganian andalusite. Canadian Mineralogist 16, 567-575. 

• Kai AT, Larsson S, Hålenius U (1980) The electronic structure and absorption spectrum of MnO₆^9- octahedra in manganian andalusite. Physics and Chemistry of Minerals 6, 77-84. 
• Abs-Wurmbach I, Langer K, Seifert F, Tillmanns E (1981) The crystal chemistry of (Mn³⁺,Fe³⁺)-substituted andalusites (viridines and kanonaite), (Al_1-x-y Mn³⁺_xFe³⁺_y)₂(O|SiO₄): crystal structure refinements, Mössbauer, and polarized optical absorption spectra. Z Kristallogr 155, 81-113 1982
• Smith G, Hålenius U, Langer K (1982) Low temperature spectral studies of Mn³⁺-bearing andalusite and epidote type minerals in the range 30000-5000 cm-1. Physics and Chemistry of Minerals 8, 136-142. 
• Langer K, Hålenius E, Fransolet AM (1984) Blue andalusite from Ottré, Venn-Stavelot Massif, Belgium: A new example of intervalence charge-transfer in the aluminum silicate polymorphs. Bull Minéralogie 107, 587-596 
• Carlson WD, Rossman GR (1988) Vanadium- and chromium-bearing andalusite: Occurrence and optical-absorption spectroscopy. American Mineralogist 73, 1366-1369. 
• Rossman GR (1988) Optical Spectroscopy. In: F.C. Hawthorne, ed., Spectroscopic Methods in Mineralogy and Geology. Rev. Mineral 18, 207-254.

• Taran MN, Koch-Muller M (2011) Optical absorption of electronic Fe-Ti charge-transfer transition in natural andalusite: The thermal stability of the charge-transfer band. Physics and Chemistry of Minerals38, 215-222.
• Taran MN Koch-Müller M (2013) FTIR spectroscopic study of natural andalusite showing electronic Fe–Ti charge-transfer processes: zoning and thermal evolution of OH-vibration bands. Phys Chem Minerals 40:, 63–71.
• Rondeau B, Chamard-Bois S, Fritsch E, Notari F (2018) Unique, reverse dichromatism in andalusite related to total pleochroism of the Fe²⁺-Ti⁴⁺ IVCT. Geophysical Research Abstracts 20, EGU2018-8807.
• Rondeau B, Chamard-Bois S, Fritsch E, Notari F, Chauviré B (2018) Reverse dichromatism in gem andalusite related to total pleochroism of the Fe²⁺-Ti⁴⁺ IVCT. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 204, 611–619.

• Abs-Wurmbach I, Langer K, Tillmanns E (1977) Structure and polarized absorption spectra of Mn³⁺-substituted andalusites (viridines). Naturwissenschaften 64, 527-528. 
• Smith G, Hålenius U, Langer K (1982) Low temperature spectral studies of Mn³⁺-bearing andalusite and epidote type minerals in the range 30000-5000 cm-1. Physics and Chemistry of Minerals 8, 136-14