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(For further information on spectrsocopy, see:
http://speclab.cr.usgs.gov)
TITLE: Halloysite NMNH106236 DESCRIPT
DOCUMENTATION_FORMAT: MINERAL
SAMPLE_ID: NMNH106236
MINERAL_TYPE: Phyllosilicate
MINERAL: Halloysite (Kaolinite-Serpentine group)
FORMULA: Al2Si2O5(OH)4
FORMULA_HTML: Al2Si2O5(OH)4
COLLECTION_LOCALITY: Utah (probably Eureka)
ORIGINAL_DONOR: National Museum of Natural History
CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
SAMPLE_DESCRIPTION:
Polymorphous with Dickite, Kaolinite, and Nacrite.
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
7A halloysite - does not expand with glycol. Pure. (Norma Vergo)
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EM(WDS), ICP(Trace), WChem
COMPOSITION_TRACE: None
COMPOSITION_DISCUSSION:
None
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
Not done yet
END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION:
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1a2_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 1920 | 0.2-3.0µm | 200 | g.s.= |
| LIB_SPECTRA: | splib05a r 3050 | 0.2-3.0µm | 200 | g.s.= |
| LIB_SPECTRA: | splib05a r 3072 | 1.3-5.3µm | 200 | g.s.= |
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