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+Toluene SWy.5ml DESCRIPT

DOCUMENTATION_FORMAT: Man Made

SAMPLE_ID: None

MATERIAL_TYPE: Phyllosilicate + organic solvent

MATERIAL: Montmorillonite + toluene

FORMULA: (Na,Ca)0.33(Al,Mg)2Si4O10(OH)2*nH20 + C7H8

FORMULA_HTML: (Na,Ca)_0.33(Al,Mg)₂Si₄O₁₀ (OH)₂•nH₂0 + C₇H₈

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

ORIGINAL_DONOR: Trude King

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

0.5 ml of benzene solvent mixed with clay

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

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 C-H related features at 1.6793, 1.7393, 1.7718, 2.2930, and 2.3563 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 10075	0.2-3.0µm	200	g.s.=

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