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(For further information on spectroscopy, see:
http://speclab.cr.usgs.gov)
TITLE: Pyrite S26-8 DESCRIPT
DOCUMENTATION_FORMAT: MINERAL
SAMPLE_ID: S26-8
MINERAL_TYPE: Sulfide
MINERAL: Pyrite (Pyrite group)
FORMULA: FeS2
FORMULA_HTML: FeS2
COLLECTION_LOCALITY: Ellenville (Ulster) Mine, Ellenville, Ulster County, NY
ORIGINAL_DONOR: Jules Friedman Field Sample
CURRENT_SAMPLE_LOCATION: USGS Reston, VA
ULTIMATE_SAMPLE_LOCATION: USGS Reston, VA
SAMPLE_DESCRIPTION:
Forms series with Cattierite (CoS2). Dimorphous with Marcasite.
Field sample from a study done on the Shawangunk Region of New York.
For specific sample information refer to the following reference: Friedman, Jules D., Mutschler, Felix E., Zartman, Robert E., Briggs, Paul H., Swayze, Gregg A., Theisen, Arnold F., 1989, Shawangunk Ore District, New York: Geochemical and Spectral Data, U.S. Geological Survey Open File Report 89-193.
IMAGE_OF_SAMPLE:
NO PHOTO
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
Not Available
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: ICP # XRF, EM(WDS), ICP(Trace), WChem
| COMPOSITION KEYWORD |
Element ASCII |
Amount | Units |
|---|---|---|---|
| COMPOSITION_TRACE: | Ag | less than 2.5 | ppm |
| COMPOSITION_TRACE: | As | 650 | ppm |
| COMPOSITION_TRACE: | Au | 0.220 | ppm |
| COMPOSITION_TRACE: | Cd | 10 | ppm |
| COMPOSITION_TRACE: | Cr | 250 | ppm |
| COMPOSITION_TRACE: | Cu | 30 | ppm |
| COMPOSITION_TRACE: | Hg | 0.035 | ppm |
| COMPOSITION_TRACE: | Mn | 35 | ppm |
| COMPOSITION_TRACE: | Ni | 50 | ppm |
| COMPOSITION_TRACE: | Pb | 40 | ppm |
| COMPOSITION_TRACE: | Sb | less than 25 | ppm |
| COMPOSITION_TRACE: | Se | less than 25 | ppm |
| COMPOSITION_TRACE: | Te | 0.11 | ppm |
| COMPOSITION_TRACE: | Tl | less than 0.2 | ppm |
| COMPOSITION_TRACE: | V | 20 | ppm |
| COMPOSITION_TRACE: | Zn | 20 | ppm |
COMPOSITION_DISCUSSION:
Mode wt%
Gal
Sph
Cpy
Py 95.0
Qtz 5.0
Assay wt%
Cu <0.01
Fe 43.43
Pb <0.01
Zn <0.01
S 44.8
Friedman, Jules D., Mutschler, Felix E., Zartman, Robert E., Briggs, Paul H., Swayze, Gregg A., Theisen, Arnold F., 1989, Shawangunk Ore District, New York: Geochemical and Spectral Data, U.S. Geological Survey Open File Report 89-193.
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 4019 | 0.2-3.0µm | 200 | g.s.= |
| LIB_SPECTRA: | splib05a r 5670 | 0.2-3.0µm | 200 | g.s.= |
| LIB_SPECTRA: | splib06a r 18617 | g.s.= |