TY  - JOUR
A1  - Markus, Kathrin
A1  - Moroz, Lyuba
A1  - Arnold, Gabriele
A1  - Henckel, Daniela
A1  - Hiesinger, Harald
A1  - Rohrbach, Arno
A1  - Klemme, Stephan
T1  - Reflectance spectra of synthetic Fe-free ortho- and clinoenstatites in the UV/VIS/IR and implications for remote sensing detection of Fe-free pyroxenes on planetary surfaces
JF  - Planetary and space science
N2  - Both enstatite spectra are very bright in the VIS and NIR and show almost neutral to slightly bluish spectral slopes with a steep absorption in the UV. Very low iron in the enstatites (below similar to 0.04 wt% FeO) already results in weak albeit noticeable absorptions in the VNIR between 0.4 and 0.9 mu m. Orthoenstatite and clinoenstatite are not distinguishable based only on their spectra in the VIS and NIR. At the Reststrahlen bands in the MIR a systematic difference in the number and exact position of local minima at similar to 10 mu m between clinoenstatite and orthoenstatite is evident. This can be used to discern between the polymorphs in this wavelength range. Additionally, we can distinguish between Fe-free low- and high-Ca pyroxenes in the MIR.
KW  - Reflectance spectroscopy
KW  - Remote sensing
KW  - Enstatite
KW  - Synthetic pyroxene
KW  - Analog material
Y1  - 2018
U6  - https://doi.org/10.1016/j.pss.2018.04.006
SN  - 0032-0633
VL  - 159
SP  - 43
EP  - 55
PB  - Elsevier
CY  - Oxford
ER  -