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(For further information on spectrsocopy, see:
http://speclab.cr.usgs.gov)
TITLE: muscovite+pyrophyl JH_PYRP1 DESCRIPT
DOCUMENTATION_FORMAT: MIXTURE
SAMPLE_ID: JH_PYRP1
MIXTURE_TYPE: Intimate
MIXTURE: Muscovite + Pyrophyllite
FORMULA: KAl2[AlSi3O10](OH,F)2 + Al2Si4O10(OH)2
FORMULA_HTML: KAl2[AlSi3O10](OH,F)2 + Al2Si4O10(OH)2
COLLECTION_LOCALITY: east ridge Jupiter Hill, park City, Utah, USA
ORIGINAL_DONOR: Barnaby Rockwell
COLLECTION_LATITUDE: Not Available # degrees and decimal minutes (N or S)
COLLECTION_LONGITUDE: Not Available # degrees and decimal minutes (W or E)
DATUM: Not Available # coordinate datum
CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
SAMPLE_DESCRIPTION:
Lab ASD spectrum of altered fissure zone, east ridge Jupiter Hill. Quartz + minor muscovite (5-25%) + minor pyrophyllite (5-25%).
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
Quartz + minor muscovite (5-25%) + minor pyrophyllite (5-25%)
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:
END_SPECTROSCOPIC_DISCUSSION.
Spectrum has absorptions at 0.7560 and 1.15 microns from an unknown material. There are absorptions characteristic of both pyrophyllite and muscovite. Both minerals have absorptions that overlap near 1.4 and 2.2 microns. The offset at 1.01 microns is an artifact.
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 8762 | 0.2-3.0µm | 200 | g.s.= |
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