Optical Spectra of Vivianite, Fe₃(PO₄)₂·8H₂O

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• Güdel HU (1983) Pair excitations in vivianite, Fe₃(PO₄)₂·2.8H₂O. Inorganic Chemistry 22, 3812-3815.
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  [Optic absorption spectra of vivianite at room and low temperatures] Dopovidi Akademiyi Nauk Ukrayinskoyi RSR, Seriya B: Geologichni, Khimichni ta Biologichni Nauki 1987, 12-15. In Russian
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• Taran MN, Langer K, Platonov AN (1996) Pressure- and temperature-effects on exchange-coupled-pair bands in electronic spectra of some oxygen-based iron-bearing minerals. Physics and Chemistry of Minerals 23, 230-236.