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: Rivadavite NMNH170164 DESCRIPT

DOCUMENTATION_FORMAT: MINERAL

SAMPLE_ID: NMNH170164

MINERAL_TYPE: Hydrous Borate

MINERAL: Rivadavite

FORMULA: Na6MgB24O40*22H2O

FORMULA_HTML: Na6MgB24O40•22H2O

COLLECTION_LOCALITY: Argentina

ORIGINAL_DONOR: Smithsonian

CURRENT_SAMPLE_LOCATION: USGS Reston, Virginia

ULTIMATE_SAMPLE_LOCATION: USGS Reston, Virginia

SAMPLE_DESCRIPTION:

Spectrum originally published in:
Crowley, J.K., 1993, Mapping playa evaporite minerals with AVIRIS data: A first Report from Death Valley, California: Remote Sensing of Environment, vol 44, p 337-356.

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

Pure rivadavite.

Crowley, J.K., 1993, Mapping playa evaporite minerals with AVIRIS data: A first Report from Death Valley, California: Remote Sensing of Environment, vol 44, p 337-356.

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:

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 4262 0.2-3.0µm 200 g.s.=
LIB_SPECTRA: splib05a r 5989 0.2-3.0µm 200 g.s.=


USA.gov logo  Take Pride in America button