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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: Illite IL101 DESCRIPT

DOCUMENTATION_FORMAT: MINERAL

SAMPLE_ID: IL101

MINERAL_TYPE: Phyllosilicate

MINERAL: Illite, a group of hydrated mica-clay minerals

FORMULA: (K,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,H20]

FORMULA_HTML: (K,H3O)(Al,Mg,Fe)2(Si,Al)4)10[(OH)2,H2O]

COLLECTION_LOCALITY: Shakanai Mine, Akita Prefecture, Japan

ORIGINAL_DONOR: Dr. S. Shimoda, University of Tsukuba

CURRENT_SAMPLE_LOCATION: CSES/CIRES, Univ. of CO, Boulder

ULTIMATE_SAMPLE_LOCATION: CSES/CIRES, Univ. of CO, Boulder

SAMPLE_DESCRIPTION:

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

Illite (2M2-illite)
Contaminant phase: Quartz(?).

Kruse, F.A., and P.L. Hauff, eds., 1992, The IGCP-264 Spectral Properties Database. IUGS/UNESCO, Special Publication, 211 p., (in press).

END_XRD_ANALYSIS.

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

COMPOSITION_TRACE:

COMPOSITION_DISCUSSION:

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

average grain size about 5 µm

Sample looks pure. G. Swayze

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 2383 0.2-3.0µm 200 g.s.= 5 µm
LIB_SPECTRA: splib05a r 3553 0.2-3.0µm 200 g.s.=


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