Wadsleyite Spectra (Visible and Infrared)
Wadsleyite is a mineral found on Earth in some meteorites. It is
believed to be abundant at depth in the planet where it exists under
high pressure. The data presented below are from synthetic material
synthesized under high pressure and temperature conditions. Its
hydrogen content is of interest because of the possiblity that this
phase can store significant
amounts of the element hydrogen at depth in the mantle of planet Earth.
Wadsleyite 2 is new synthetic hydrous silicate phase related
to wadsleyite which can contain even larger amounts of hydrogen.
Reference: Smyth & Kawamoto, Earth & Planetary Sci Let
(1997).
It has a dark green color from its Fe2+ content.
Image of the wadsleyite 2 visible absorption spectrum
-
wadsleyite 2 spectrum; Single crystal synthetic material.
Plotted as 0.05 mm thick. Composite spectra merged from data from
different machines. Data Files: not available
Image of the wadsleyite infrared absorption spectrum in the
OH region
-
wadsleyite spectrum,; Single crystal synthetic material.
Plotted as 0.10 mm thick. Data File: data
-
wadsleyite 2 spectrum; Single crystal synthetic material.
Plotted as 0.05 mm thick. Data File: a
; b; c
Link to references about wadsleyite spectra
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