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(For further information on spectroscopy, see:
http://speclab.cr.usgs.gov)
TITLE: Calcite GDS304 DESCRIPT
DOCUMENTATION_FORMAT: MINERAL
SAMPLE_ID: GDS304
MINERAL_TYPE: Carbonate
MINERAL: Calcite (Calcite group)
FORMULA: CaCO3
FORMULA_HTML: CaCO3
COLLECTION_LOCALITY: Mexico
ORIGINAL_DONOR: U.S.G.S. purchase
CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
SAMPLE_DESCRIPTION:
Calcite GDS304 was ground and sieved from Calcite GDS298 (Iceland Spar) purchased from Egger's Lapidary
July, 1999.
END_SAMPLE_DESCRIPTION.
Not Available
XRD_ANALYSIS:
Not available
END_XRD_ANALYSIS:
COMPOSITIONAL_ANALYSIS_TYPE: NONE # XRF, EM(WDS), ICP(Trace),WChem
COMPOSITION_TRACE: None
COMPOSITION_DISCUSSION:
None
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
None END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION:
Spectrum resembles that of pure calcite with its high reflectance and characteristic absorption features.
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1b2_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: | splib05a r 1485 | 0.2-3.0µm | 200 | g.s.= |
| LIB_SPECTRA: | splib06a r 4124 | g.s.= |