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USGS Spectral Library Version 7 Sample Description

Kokaly, R.F., Clark, R.N., Swayze, G.A., Livo, K.E., Hoefen, T.M., Pearson, N.C., Wise, R.A., Benzel, W.M., Lowers, H.A., Driscoll, R.L., and Klein, A.J., 2017, USGS Spectral Library Version 7: U.S. Geological Survey Data Series 1035, 61 p., https://doi.org/10.3133/ds1035
For more information on the library, see: local link web link

TITLE: Heulandite NMNH84534 DESCRIPT

DOCUMENTATION_FORMAT: MINERAL

SAMPLE_ID: NMNH84534

MINERAL_TYPE: Tectosilicate

MINERAL: Heulandite (Zeolite group)

FORMULA: (Na,Ca)2-3Al3(Al,Si)2Si13O36*12H2O

FORMULA_HTML: (Na,Ca)2-3Al3(Al,Si)2Si13O36•12H2O

COLLECTION_LOCALITY: Teigarhom, Iceland

ORIGINAL_DONOR: Smithsonian

CURRENT_SAMPLE_LOCATION: USGS Reston, Virginia

ULTIMATE_SAMPLE_LOCATION: USGS Reston, Virginia

SAMPLE_DESCRIPTION:

IMAGE_OF_SAMPLE:
Photo of sample

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

Pure heulandite.

Ehman, W.J. and Norma Vergo, 1986, Spectral discrimination of zeolites and dioctahedral clays in the near-infrared. Remote Sensing for Exploration Geology, 5th Thematic Conference, Reno, Nevada, September 29-October 2, 1986, Proceedings, pp 417-425.

END_XRD_ANALYSIS.

COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EPMA, ICP(Trace), WChem

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

None

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

END_SPECTROSCOPIC_DISCUSSION.

SPECTRAL_PURITY: 1a2a3a4u # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns