Clark et. al. 2003 USGS Open File Report 03-395
Spectral Library splib05a Sample Description

(For further information on spectrsocopy, see: http://speclab.cr.usgs.gov)

TITLE: Montmorillonite+Trichlorethane DESCRIPT

DOCUMENTATION_FORMAT: Man Made

SAMPLE_ID: None

MATERIAL_TYPE: Phyllosilicate + organic solvent

MATERIAL: Montmorillonite + trichloroethane

FORMULA: (Na,Ca)0.33(Al,Mg)2Si4O10(OH)2*nH20 + C2H3Cl3

FORMULA_HTML: (Na,Ca)_0.33(Al,Mg)₂Si₄O₁₀ (OH)₂•nH₂0 + C₂H₃Cl₃

COLLECTION_LOCALITY: Montomorillonite SWy-1 from Crook, Wyoming, USA and trichloroethane from a chemical supplier.

ORIGINAL_DONOR: Trude King

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

1 ml of trichloroethane solvent mixed with clay

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

see:

END_XRD_ANALYSIS.

COMPOSITIONAL_ANALYSIS_TYPE: None # XRF, EM(WDS), ICP(Trace), WChem

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

Spectrum has normal clay absorptions described for Montmorillonite SWy-1 and additional organic solvent related features at 1.5353, 1.5923, 1.6335, 1.6806, 1.7170, 1.7500, 1.8262, 2.2576, and 2.2864 microns.

END_SPECTROSCOPIC_DISCUSSION.

SPECTRAL_PURITY: 1a2_3_4_ # 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:	splib05a r 10087	0.2-3.0µm	200	g.s.=

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U.S. Department of the Interior | U.S. Geological Survey URL: https://pubsdata.usgs.gov/pubs/of/2003/ofr-03-395/DESCRIPT/A/montmorillonite_trichlor.html Questions or Assistance: USGS Web Contact Page Last Modified: Sat Jan 12 23:28 EST 2013