Clark and others 2007 USGS Data Series 231
Spectral Library splib06a Sample Description

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

TITLE: Calcite+Talc PC99-1G DESCRIPT

DOCUMENTATION_FORMAT: MIXTURE

SAMPLE_ID: PC99-1G

MIXTURE_TYPE: Areal

MIXTURE: Calcite and Talc

FORMULA: CaCO3 and Mg3Si4O10(OH)2

FORMULA_HTML: CaCO₃ and Mg₃Si₄O₁₀(OH)₂

COLLECTION_LOCALITY: Empire Canyon, Utah.

ORIGINAL_DONOR: Barnaby Rockwell

CURRENT_SAMPLE_LOCATION: U.S.G.S. Denver Spectroscopy Laboratory.

ULTIMATE_SAMPLE_LOCATION: U.S.G.S. Denver Spectroscopy Laboratory.

SAMPLE_DESCRIPTION:

Talc conglomerate from waste rock pile (Empire Canyon, Utah)

See: Rockwell, B.W.,2002, Descriptions, spectral plots, and digital reflectance spectra of samples applied to spectral analysis of imaging spectroscopy data: Utah (East Tintic Mountains, Oquirrh Mountains, Wasatch Mountains, and Tushar Mountains), Nevada (Goldfield Hills), and New Mexico (Jemez Mountains), USA, 1999-2002: U.S. Geological Survey Open-File Report 02-407, electronic web pages. (http://pubs.usgs.gov/of/2002/ofr-02-407)

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

Major: Calcite, Talc
Trace: Quartz, Apatite, Sanidine, Chlinochlore, and Dolomite

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:

Strong carbonate and talc features at 2.3 microns.

END_SPECTROSCOPIC_DISCUSSION.

SPECTRAL_PURITY: 1c2_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 7632	0.2-3.0µm	200	g.s.=
LIB_SPECTRA:	splib06a r 24536			g.s.=