TITLE: Pyrophyllite + Muscovite JH_PYRM1
MATERIAL TYPE: MINERAL
SAMPLE ID: JH PYRM1
MINERAL TYPE: Intimate mixture
FORMULA:
COLLECTION LOCALITY: Jupiter Hill, East Ridge, Park City mining district,
Summit and Wasatch Counties, Utah
COLLECTION LOCALITY LAT/LONG: 40º 36' 44.4" N, 111º 32'
7.43" W
ORIGINAL DONOR: Barnaby W. Rockwell
CURRENT SAMPLE LOCATION: USGS Denver, CO
ULTIMATE SAMPLE LOCATION: USGS Denver, CO
SAMPLE DESCRIPTION:
High grade argillic alteration along ENE-trending fault zone.
XRD ANALYSIS:
Major (>25%): quartz
Minor (5%-25%): pyrophyllite
Trace (<5%): muscovite, microcline
COMPOSITIONAL ANALYSIS TYPE: EM(WDS) # XRF,
EM(WDS), ICP(Trace), WChem
Compound/Element |
Composition weight % |
|---|---|
|
SiO2 |
|
|
TiO2 |
|
|
Al2O3 |
|
|
FeO |
|
|
MnO |
|
|
MgO |
|
|
CaO |
|
|
Na2O |
|
|
K2O |
|
| Total |
|
|
O=Cl,F,S |
|
| New Total |
|
COMPOSITION DISCUSSION:
MICROSCOPIC EXAMINATION:
WAVELENGTH INTERVALS OF ABSORPTION FEATURES USED IN SPECTRAL ANALYSIS:
| Absorption |
Left
continuum endpoint |
Right
continuum endpoint |
||
|---|---|---|---|---|
| 1 |
2.080 |
2.113 |
2.241 |
2.271 |
| 2 |
2.252 |
2.272 |
2.360 |
2.380 |
SPECTRAL REGION USED FOR CURVE SHAPE COMPETITION: 1.4 - 2.5 µm, Tetracorder group 2
SPECTROSCOPIC DISCUSSION:
USGS SPECTRAL LIBRARY LOCATION AND SPECTRAL RANGE: sprlf01a r 199 0.35-2.50µm
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