Optical Spectra of Amblygonite- Montebrasite series: LiAl(PO₄)F - LiAl(PO₄)(OH)

• Platonov AN, Tarashchan AN (1973) Optical spectroscopy of vanadium in natural minerals. III. Absorption spectra of vanadium(4+) and vanadium(3+) complexes. Konstitutsiya i Svoistva Mineralov 7, 75-81. In Russian
• Platonov (1976) The nature of the color of minerals. Naukova Dumka, Kiev (in Russian)

• Zhang J, Li K, Qin D, Bao D, Wang Chao (2024) Spectroscopic characteristics and color genesis of yellowish-green montebrasite. Guangpuxue Yu Guangpu Fenxi  44, 777-783 (in Chinese)