Cavansite spectra

Cavansite Visible Spectra (350 - 1050 nm)

GRR 1888 spectrum, 6K; from near Wagholi, Pune District, Maharashtra, India, 0.105 mm thick sample. The color of this material comes from the VO²⁺ ion and varies considerably with the direction in which it is observed. It is blue when polarized perpendicular to the prism axis to colorless when parallel.. Data Files: E||a=beta 22K; E||c=gamma 22K;