Facilities |
raman spectrometers of Laboratoire de Géologie
de Lyon are national instruments supported by Institut
des Sciences de L'Univers and therefore to work with one
of this machine :
- consult the [facilities]
booking system
- send us an email [raman@geologie-lyon.fr]
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To send spectrum |
to help us to increase this data base, fill
[this form]
and send new spectrum file |
Links |
The WURM project is a database of computed physical properties of minerals including calculated Raman spectra using ABINIT code
[link]
The Rruff Project website containing an integrated database of Raman spectra, X-ray diffraction and chemistry
data for minerals
[link]
Raman Mineral Spectroscopy Server (Caltech)
[link]
Raman Spectra Minerals (University of Parma)
[link]
Raman data base of minerals (SFMC)
[link]
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Laser spot on a Pyrite sample
Raman spectroscopy can be
used to identify, with a minimum of preparation, minerals, glasses
and fluids in geological samples
[LGL]. We therefore present a selection of Raman spectra of
minerals representative of some major mineral groups
[use search engine]. The spectra provide the main vibrational
fingerprints of each main mineral group and related minerals. We
report here more recent references and references for Raman studies
carried out at high-pressures and high-temperatures are also mentionned.
Most of the spectra were recorded on a XY ©DILOR Raman microspectrometer
equipped with a CCD detector [Picture]. The spectrometer
was used in backscattering geometry. The laser beam (488
or 514.5 nm exciting lines of a Spectra
Physics® Ar+ laser) was focussed through microscope
objectives (x50) down to a 2 micrometer spot on sample and
the backscattered light was collected through the same objective.
Even though polarization effects are minimized, the intensity of the
Raman modes can be sensitive to crystal orientation.
Instruments |
spectrometer |
laser source |
Labram HR800 vis Jobin Yvon Horiba
semi-confocal microscope - mapping stage |
Spectra Physics® 2018
Ar+/Kr+ 647.1 nm 568nm 514.5nm 457.9nm
HeNe 632.8nm |
Labram HR800 Evolution vis Horiba
confocal microscope for Raman mapping (stages, DuoScan, Swift mode) |
Oxxius monomode DPSS 532nm Oxxius monomode diode 785nm |
Labram HR800 vis Jobin Yvon Horiba
confocal microscope and fiber entrance |
Laser Quantum
Torus 400 532nm
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Labram HR800 UV Jobin Yvon Horiba |
Spectra Physics®
WaveTrain 244nm |
RaPort EnSpectr |
532nm |
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