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(For further information on spectroscopy, see:
http://speclab.cr.usgs.gov)
TITLE: Clinoptilolite GDS2 Zeolite DESCRIPT
DOCUMENTATION_FORMAT: MINERAL
SAMPLE_ID: GDS2
MINERAL_TYPE: Tectosilicate
MINERAL: Clinoptilolite (Zeolite group)
FORMULA: (Na,K,Ca)2-3Al3(Al,Si)2Si13O36*12H2O
FORMULA_HTML: (Na,K,Ca)2-3Al3(Al,Si)2Si13O36•12H2O
COLLECTION_LOCALITY: Sheaville, Oregon
ORIGINAL_DONOR: Wards Scientific
CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory
SAMPLE_DESCRIPTION:
The original sample description and vis-NIR spectrum was published in:
Clark, R.N_, T.V.V. King, M. Klejwa, G. Swayze, and N. Vergo, 1990, High spectral resolution reflectance spectroscopy of minerals: J. Geophys Res. 12653-12680.
The sample appears to be spectrally pure.
IMAGE_OF_SAMPLE:
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
Clinoptilolite + medium amount of other - by Norma Vergo
See: Clark, R.N., T.V.V. King, M. Klejwa, G. Swayze, and N. Vergo, 1990, High spectral resolution reflectance spectroscopy of minerals: J. Geophys Res. 12653-12680.
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EM(WDS), ICP(Trace), WChem
COMPOSITION_TRACE: None
COMPOSITION_DISCUSSION:
None
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
mode:
97-98 vol% clinoptilolite
2- 3 vol% quartz or feldspar
tr opaques
Grains have low first order gray interference color, good cleavage. Up to 15 vol% air bubbles or fluid inclusions in clinoptilolite hinder determination of optical properties. G. Swayze.
END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION:
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1b2b3b4b # 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 1143 | 0.2-3.0µm | 200 | g.s.= 60 µm |
| LIB_SPECTRA: | splib05a r 2079 | 0.2-3.0µm | 200 | g.s.= |
| LIB_SPECTRA: | splib06a r 5896 | g.s.= | ||
| LIB_SPECTRA: | splib06a r 5908 | g.s.= |