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(For further information on spectroscopy, see:
http://speclab.cr.usgs.gov)
TITLE: Epidote GDS301 DESCRIPT
DOCUMENTATION_FORMAT: MINERAL
SAMPLE_ID: GDS301
MINERAL_TYPE: Sorosilicate
MINERAL: Epidote (Epidote group)
FORMULA: Ca2(Al,Fe+3)3(SiO4)3(OH)
FORMULA_HTML: Ca2(Al,Fe+3)3(SiO4)3(OH)
COLLECTION_LOCALITY: Prince Wales Island, Green Monster Mtn. (purchased from Egger's Lapidary.
ORIGINAL_DONOR: U.S.G.S purchase
CURRENT_SAMPLE_LOCATION: U.S.G.S. Denver Spectroscopy Laboratory.
ULTIMATE_SAMPLE_LOCATION: U.S.G.S. Denver Spectroscopy Laboratory.
SAMPLE_DESCRIPTION:
Ground and sieved from GDS297.
IMAGE_OF_SAMPLE:
NO PHOTO
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
Not Available
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EM(WDS), ICP(Trace), WChem
COMPOSITION_TRACE: None
None
COMPOSITION_DISCUSSION:
None
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
None
END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION:
Spectrum matches that of other epidote samples in the library (e.g. GDS26). This sample looks spectrally pure.
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 2609 | 0.2-3.0µm | 200 | g.s.= |
| LIB_SPECTRA: | splib06a r 7571 | g.s.= |