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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: Kaolinite KGa-2 (pxl) DESCRIPT

DOCUMENTATION_FORMAT: MINERAL

SAMPLE_ID: KGa-2

MINERAL_TYPE: Phyllosilicate

MINERAL: Kaolinite (Kaolinite-Serpentine group)

FORMULA: Al2Si2O5(OH)4

FORMULA_HTML: Al2Si2O5(OH)4

COLLECTION_LOCALITY: Warren County, GA

ORIGINAL_DONOR: Clay Mineral Society

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

Polymorphous with Dickite, Halloysite, and Nacrite. This sample is an excellent example of disordered kaolinite. A spectrum for this sample was published by:

Clark, R.N., T.V.V. King, M. Klejwa, G. Swayze, and N. Vergo, 1990, High spectral resolution reflectance spectroscopy of minerals: J. Geophys Res.12653-12680., who noted that it was spectrally pure.

The spectrum from 2.5-25µm was published in: Salisbury, J. W., Walter, L. W., and Vergo, N., 1987, Mid-Infrared (2.1-25µm) Spectra of Minerals: First Edition, U.S. Geological Survey Open File Report 87-263.

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

Analysis by Norma Vergo indicates the sample is kaolinite + trace anatase.

END_XRD_ANALYSIS.

COMPOSITIONAL_ANALYSIS_TYPE: EM # XRF, EM(WDS), ICP(Trace), WChem


COMPOSITION
KEYWORD
Oxide
ASCII
Amount Weight
Percent, %
Oxide
html
COMPOSITION: SiO2 44.2 wt% SiO2
COMPOSITION: TiO2 2.17 wt% TiO2
COMPOSITION: Al2O3 37.2 wt% Al2O3
COMPOSITION: Fe2O3 1.14 wt% Fe2O3
COMPOSITION: FeO 0.05 wt% FeO
COMPOSITION: MnO 0.00 wt% MnO
COMPOSITION: MgO 0.04 wt% MgO
COMPOSITION: CaO 0.04 wt% CaO
COMPOSITION: Na2O 0.02 wt% Na2O
COMPOSITION: K2O 0.02 wt% K2O
COMPOSITION: P2O5 0.06 wt% P2O5
COMPOSITION: F 0.020wt% F
COMPOSITION: Total 99.18 wt%
COMPOSITION: O=Cl,F,S wt% #correction for Cl, F, S
COMPOSITION: New Total wt%

COMPOSITION_TRACE:

COMPOSITION_DISCUSSION:

Analysis by C.V.Clemency, Dept. of Geological Sciences, SUNY at Buffalo, Buffalo N.Y. for the Clay Minerals Society. Fluorine analysis by J. Thomas Jr., Illinois State Geological Survey, Urbana, Ill, and is not included in the total.

Published in: van Olphen, H. and J.J. Fripiat, eds., 1979, Data handbook for clay materials and other non-metallic minerals, Pergamon Press, New York, p128.

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

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: splib04a r 2552 0.2-3.0µm 200 g.s.=
LIB_SPECTRA: splib05a r 3976 0.2-3.0µm 200 g.s.=


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