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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: Muscovite CU93-1 low-Al Phyl DESCRIPT

DOCUMENTATION_FORMAT: MINERAL

SAMPLE_ID: CU93-1

MINERAL_TYPE: Phyllosilicate

MINERAL: Muscovite (Mica group)

FORMULA: KAl2Si3O10(OH)2

FORMULA_HTML: KAl2Si3O10(OH)2

COLLECTION_LOCALITY: Cuprite Nevada

ORIGINAL_DONOR: G.Swayze

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

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

SAMPLE_DESCRIPTION:

unaltered metamorphic phyllite from the lower Cambrian Harkless formation. Sample has quartz

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

Not Available

END_XRD_ANALYSIS.

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

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

None

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

None

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

Spectrum has absorptions characteristic of muscovite.

END_SPECTROSCOPIC_DISCUSSION.

SPECTRAL_PURITY: 1b2_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 4638 1.3-5.3µm 200 g.s.=


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