Sample Description USGS Spectral Library Version 7

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:
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web link}

TITLE: Dysprosium_Oxide JMC315 DESCRIPT

DOCUMENTATION_FORMAT: Man_Made

SAMPLE_ID: JMC315 Lab No. 53714

MATERIAL_TYPE: Chemical Reagent

MATERIAL: Rare Earth Oxide

FORMULA: Dy2O3

FORMULA_HTML: Dy₂O₃

COLLECTION_LOCALITY: Johnson Matthey and Co. Limited, London

ORIGINAL_DONOR: Steve Wilson USGS

CURRENT_SAMPLE_LOCATION: USGS Denver Bld. 20 Room G1509

ULTIMATE_SAMPLE_LOCATION: USGS Denver Bld. 20 Room G1509

SAMPLE_DESCRIPTION:

Dysprosium oxide chemical reagent.

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:

The spectrum is dominated by numerous intense sharp f-f transition absorptions in the visible and NIR region. A partial list includes absorptions at 0.3888, 0.4245, 0.7436, 0.7993, 0.8875, 1.2616, and 1.6809 microns. G. Swayze.

END_SPECTROSCOPIC_DISCUSSION.

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