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 GDS304 DESCRIPT

DOCUMENTATION_FORMAT: MINERAL

SAMPLE_ID: GDS304

MINERAL_TYPE: Carbonate

MINERAL: Calcite (Calcite group)

FORMULA: CaCO3

FORMULA_HTML: CaCO₃

COLLECTION_LOCALITY: Mexico

ORIGINAL_DONOR: U.S.G.S. purchase

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

Calcite GDS304 was ground and sieved from Calcite GDS298 (Iceland Spar) purchased from Egger's Lapidary
July, 1999.

END_SAMPLE_DESCRIPTION.

Not Available

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 resembles that of pure calcite with its high reflectance and characteristic absorption features.

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 1485	0.2-3.0µm	200	g.s.=

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U.S. Department of the Interior | U.S. Geological Survey URL: https://pubsdata.usgs.gov/pubs/of/2003/ofr-03-395/DESCRIPT/M/calcite_gds304.html Questions or Assistance: USGS Web Contact Page Last Modified: Sat Jan 12 23:29 EST 2013