U.S. Geological Survey home page


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: Calcite+.50Ca-Mont AMX6 DESCRIPT

DOCUMENTATION_FORMAT: MIXTURE

SAMPLE_ID: AMX6

MIXTURE_TYPE: Areal

MIXTURE: Calcite, Montmorillonite

FORMULA: CaCO3 + (Na,Ca)0.33(Al,Mg)2[(SiAl)4O10(OH)2]*nH2O

FORMULA_HTML: CaCO3 + (Na,Ca)0.33(Al,Mg)2Si4O10(OH)2•nH2O

COLLECTION_LOCALITY: (Tunguska, Siberia, USSR) (Apache County, Arizona)

ORIGINAL_DONOR: (Wards Scientific) (Clay Mineral Society)

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

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

SAMPLE_DESCRIPTION:

Calcite + 50% Ca-Mont. 08/29/85

See WS272, SAz-1.

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

See WS272, SAz-1.

END_XRD_ANALYSIS.

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

COMPOSITION_TRACE: None

COMPOSITION_DISCUSSION:

See WS272, SAz-1.

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

See WS272, SAz-1.

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

See WS272, SAz-1.

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 7603 0.2-3.0µm 200 g.s.=


USA.gov logo  Take Pride in America button