Rutile Visible Spectra (400 - 1100 nm)
Rutile, TiO2, would be
nearly colorless
nearly colorless if it were purely titanium dioxide. It
commonly has minor amounts of iron, chromium, vanadium, niobium, and
hydrogen. A small
amount of reduction produces Ti3+ ions that enter into
electron exchange with the Ti4+ ions and cause blue color.
Rutile absorption spectrum
- Rutile;
Brownish red-orange rutile from North Carolina, USA. The sample is 2.69
mm thick. Data Files: E perp c;
E||c
- Rutile DV-1, Graves
Mountain, Georgia, USA. A 0.040 mm thick orange
sample that is opaque when more
than 1/2 mm thick. This crystal has about 1.3% of other ions in the
proportion Cr~Fe>V>Nb. Data Files: E perp c;
E||c
Back
to the list of minerals
Back
to the Index of Data Files
Back
to the
Mineral Spectroscopy home page
last
upgraded 8-July-2022