DOCUMENTATION_FORMAT: MIXTURE
SAMPLE_ID: CU91-250A
MIXTURE_TYPE: Areal
MIXTURE: 50% Kaolinite CM9 and 50% Muscovite GDS113
FORMULA: Al2Si2O5(OH)4 and KAl2Si3O10(OH)2
FORMULA_HTML: Al2Si2O5(OH)4 and
KAl2Si3O10(OH)2
COLLECTION_LOCALITY: Mesa Alta, New Mexico (Kaolinite) and Brazil (muscovite).
ORIGINAL_DONOR: Clay Mineral Standard (kaolinite) and Jim Post from SUNY (muscovite)
COLLECTION_LATITUDE: Not Available # degrees and decimal minutes (N or S)
COLLECTION_LONGITUDE: Not Available # degrees and decimal minutes (W or E)
DATUM: Not Available # coordinate datum
CURRENT_SAMPLE_LOCATION: U.S.G.S. Denver Spectroscopy Laboratory
ULTIMATE_SAMPLE_LOCATION: U.S.G.S. Denver Spectroscopy Laboratory
SAMPLE_DESCRIPTION:
This is an areal mixture (linear) calculated using spectra of pure endmembers.
END_SAMPLE_DESCRIPTION.
XRD_ANALYSIS:
see: Kaolinite CM9 and Muscovite GDS113
END_XRD_ANALYSIS.
COMPOSITIONAL_ANALYSIS_TYPE: NONE # XRF, EPMA, ICP(Trace),WChem
COMPOSITION_TRACE: None
COMPOSITION_DISCUSSION:
See Kaolinite CM9 and Muscovite GDS113
END_COMPOSITION_DISCUSSION.
MICROSCOPIC_EXAMINATION:
Kaolinite CM9 and Muscovite GDS113
END_MICROSCOPIC_EXAMINATION.
SPECTROSCOPIC_DISCUSSION:
Spectrum has a muscovite band superimposed on the kaolinite doublet at 2.2 microns that strongly resembles that of halloysite.
END_SPECTROSCOPIC_DISCUSSION.
SPECTRAL_PURITY: 1a2a3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns