Vonsenite Visible Spectra (300 - 2500 nm)
Vonsenite is a iron borate mineral containing iron in two different
oxidation states which give rise to intervalence charge
transfer. It is Fe22+Fe3+(BO3)O2.
Image of the vonsenite absorption spectrum
- Vonsenite; powder dispersed in a
potassium bromite pellet. Sample from Romania. To date, single crystal
spectra do not exist.
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revised
11-Jul-2022
