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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: Fiberglass GDS335 Wh Roofing DESCRIPT

DOCUMENTATION_FORMAT: Man_Made

SAMPLE_ID: GDS335

MATERIAL_TYPE: Fiberglass

MATERIAL: Fiberglass

FORMULA: CH4 compound

FORMULA_HTML: CH4 compound

COLLECTION_LOCALITY: Purchased from a hardware store, Denver, Colorado

ORIGINAL_DONOR: Gregg Swayze

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Lab

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Lab

SAMPLE_DESCRIPTION:

Sample is of newly purchased corrugated white fiberglass roofing material typically used in green house construction. Sample thickness is 1.0 mm. Some dust was present on the surface during measurement.

IMAGE_OF_SAMPLE:
Photo of sample

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

END_XRD_ANALYSIS.

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

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

Spectrum was collected of the top surface of this sample. The spectrum slopes down toward longer wavelengths from a high of 84% reflectance at 0.55 microns. There are also moderately strong absorptions at 1.1429, 1.2082, and 1.4278 microns and strong absorptions at 1.6781, 1.9054, 1.9482, 2.1429, 2.1671, 2.2662, 2.2978, 2.3524, and 2.3524 microns. The absorptions at 1.6781 and in the 2.3 micron region are C-H related.

END_SPECTROSCOPIC_DISCUSSION.

SPECTRAL_PURITY: 1a2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns