Römerite Visible Spectra (400 - 2400 nm)
The spectrum of light orange-brown roemerite, Fe2+Fe3+2(SO4)4
· 14H2O, is an excellent
example of the spectrum of an Fe2+ - Fe3+ mineral
in which the Fe2+ - Fe3+
ions are sufficiently separated from each other that
intervalence charge transfer is not an important component of the
spectrum. i
Image of the roemerite absorption spectrum
- GRR 180 spectrum
0.30 mm thick cleavage plate from the Dexter 7 Claim, San Rafael Swel, Utah,
USA. Unpolarized spectrum of an off-centered optic axis figure Data File: unpolarized
cleavage
Back to the
list of minerals
Back to the Mineral Spectroscopy home page
