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(For further information on spectrsocopy, see:
http://speclab.cr.usgs.gov)
TITLE: Olivine HS420 DESCRIPT
DOCUMENTATION_FORMAT: MINERAL
SAMPLE_ID: HS420
MINERAL_TYPE: Nesosilicate
MINERAL: Olivine (Olivine group)
FORMULA: Mg2SiO4-Fe2SiO4
FORMULA_HTML: Mg2SiO4-Fe2SiO4
COLLECTION_LOCALITY: Washington
ORIGINAL_DONOR: Hunt and Salisbury Collection
CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
SAMPLE_DESCRIPTION:
A spectrum for this sample was published in: Hunt, G.R., J.W. Salisbury, and C.J. Lenhoff, 1973, Visible and near-infrared spectra of minerals and rocks: VI. Additional silicates. Modern Geology, v. 4, p. 85-106.
With the note: " This sample contains some magnetite impurity. The 0.63µm ferric iron band is particularly evident in the size III spectrum.
The sample measured for the library was the sieve interval, 3B, 74-250µm.
For additional information on the spectra of olivine's see: King, T.V.V. and W.I. Ridley, 1987, Relation of the Spectroscopic Reflectance of Olivine to Mineral Chemistry and Some Remote Sensing Implications. J. Geophys. Res., 11,457-11,469.
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
Not Available
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EM(WDS), ICP(Trace), WChem
COMPOSITION_TRACE:
COMPOSITION_DISCUSSION:
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION:
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1c2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns
| LIB_SPECTRA_HED: | where | Wave Range | Av_Rs_Pwr | Comment |
|---|---|---|---|---|
| LIB_SPECTRA: | splib04a r 3636 | 0.2-3.0µm | 200 | g.s.= |
| LIB_SPECTRA: | splib05a r 5127 | 0.2-3.0µm | 200 | g.s.= |
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