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: Teepleite+Trona NMNH102798 DESCRIPT

DOCUMENTATION_FORMAT: MIXTURE

SAMPLE_ID: NMNH102798

MIXTURE_TYPE: Intimate

MIXTURE: Teepleite + Trona

FORMULA: Na2(BO2)Cl*2H2O + Na3(CO3)(HCO3)*2H2O

FORMULA_HTML: Na₂(BO₂)Cl•2H₂O + Na₃(CO₃)(HCO₃)*2H₂O

COLLECTION_LOCALITY: Borax Lake, California

ORIGINAL_DONOR: Smithsonian

CURRENT_SAMPLE_LOCATION: USGS Reston, Virginia

ULTIMATE_SAMPLE_LOCATION: USGS Reston, Virginia

SAMPLE_DESCRIPTION:

Spectrum originally published in: Crowley, J.K., 1991, Visible and Near-Infrared (0.4 - 2.5µm) Reflectance Spectra of Playa Evaporite Minerals: Journal of Geophysical Research, vol 96, no.B10, p. 16,231-16,240.

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

Teepleite, sample contains moderate amount of trona. (Crowley, 1991)

END_XRD_ANALYSIS.

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

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

Trona also present as contaminant

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

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:	splib04a r 4718	0.2-3.0µm	200	g.s.=
LIB_SPECTRA:	splib05a r 9017	0.2-3.0µm	200	g.s.=

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