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Clark et. al. 2003 USGS Open File Report 03-395
Spectral Library splib05a Sample Description

(For further information on spectrsocopy, see: http://speclab.cr.usgs.gov)

TITLE: Galena S105-2 DESCRIPT

DOCUMENTATION_FORMAT: MINERAL

SAMPLE_ID: S105-2

MINERAL_TYPE: Sulfide

MINERAL: Galena

FORMULA: PbS

FORMULA_HTML: PbS

COLLECTION_LOCALITY: Washington Mine, Otisville, NY

ORIGINAL_DONOR: Jules Friedman

CURRENT_SAMPLE_LOCATION: Jules Friedman, USGS

ULTIMATE_SAMPLE_LOCATION: Jules Friedman, USGS

SAMPLE_DESCRIPTION:

Forms series with Clausthalite.

Wilbur, J.S., F.E. Mutschler, J.D. Friedman, and R.E. Zartman, 1990, New chemical, isotopic, and fluid inclusion data from zinc-lead-copper veins, Shawangunk Mountains, New York. Economic Geology, v.85 no.1, pp. 182-196.

Friedman, J.D., F.E. Mutschler, R.E. Zartman, P.H. Briggs, G.A. Swayze, and A.F. Theisen, 1989, Shawangunk ore district, New York: Geochemical and spectral data. USGS Open-File Report 89-193, p. 92.

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 180.7 ppm
COMPOSITION_TRACE: As less than 25 ppm
COMPOSITION_TRACE: Au .005 ppm
COMPOSITION_TRACE: Cd less than 10 ppm
COMPOSITION_TRACE: Cr 25 ppm
COMPOSITION_TRACE: Cu 450 ppm
COMPOSITION_TRACE: Hg 1.0 ppm
COMPOSITION_TRACE: Mn less than 5 ppm
COMPOSITION_TRACE: Ni less than 5 ppm
COMPOSITION_TRACE: Pb
COMPOSITION_TRACE: Sb 100 ppm
COMPOSITION_TRACE: Se 25 ppm
COMPOSITION_TRACE: Te 0.17 ppm
COMPOSITION_TRACE: Tl less than 0.2 ppm
COMPOSITION_TRACE: V less than 5
COMPOSITION_TRACE: Zn 7000

COMPOSITION_DISCUSSION:

Mode wt%
Gal 98.0
Sph 1.0
Cpy
Py
Qtz 1.0

Assay wt%
Cu 0.04
Fe 0.10
Pb 84.56
Zn 0.69
S 12.5

Wilbur, J.S, F.E. Mutschler, J.D. Friedman, and R.E. Zartman, 1990, New chemical, isotopic, and fluid inclusion data from zinc-lead-copper veins, Shawangunk Mountains, New York. Economic Geology, v.85 no.1, pp. 182-196.

Friedman, J.D., F.E. Mutschler, R.E. Zartman, P.H. Briggs, G.A. Swayze, and A.F. Theisen, 1989, Shawangunk ore district, New York: Geochemical and spectral data. USGS Open-File Report 89-193, p. 92.

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

mode:
98 vol% galena
1 vol% sphalerite (I cannot see, but open file indicates present)
1 vol% quartz

Sample has shiny blue metallic luster and cubic cleavage, al consistent with a relatively pure galena sample. G. Swayze.

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

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: splib04a r 1699 0.2-3.0µm 200 g.s.= 58 µm
LIB_SPECTRA: splib05a r 2747 0.2-3.0µm 200 g.s.=


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