TITLE: Kaolinite CM7 DESCRIPT

DOCUMENTATION_FORMAT: MINERAL

SAMPLE_ID: CM7

MINERAL_TYPE: Phyllosilicate

MINERAL: Kaolinite (Kaolinite-Serpentine group)

FORMULA: Al2Si2O5(OH)4

FORMULA_HTML: Al2Si2O5(OH)4

COLLECTION_LOCALITY: Bath, South Carolina

ORIGINAL_DONOR: Clay Mineral Standard from Wards Natural Science Inc.

CURRENT_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

ULTIMATE_SAMPLE_LOCATION: USGS Denver Spectroscopy Laboratory

SAMPLE_DESCRIPTION:

Polymorphous with Dickite, Halloysite, and Nacrite.

END_SAMPLE_DESCRIPTION.

XRD_ANALYSIS:

Disordered kaolinite + tr quartz, same for < 2µm fraction (Norma Vergo)

END_XRD_ANALYSIS.

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


COMPOSITION: SiO2 44.6 wt% SiO2
COMPOSITION: TiO2 1.43 wt% TiO2
COMPOSITION: Al2O3 36.4 wt% Al2O3
COMPOSITION: Fe2O3 1.61 wt% Fe2O3
COMPOSITION: FeO 0.03 wt% FeO
COMPOSITION: MnO <0.02 wt% MnO
COMPOSITION: MgO 0.14 wt% MgO
COMPOSITION: CaO 0.02 wt% CaO
COMPOSITION: Na2O <0.15 wt% Na2O
COMPOSITION: K2O 0.40 wt% K2O
COMPOSITION: P2O5 0.11 wt% P2O5
COMPOSITION: H2O+ 13.6 wt% H2O+
COMPOSITION: H2O- 0.61 wt% H2O-
COMPOSITION: H2O 14.2 wt% H2O
COMPOSITION: LOI 14.0 wt% LOI
COMPOSITION: Total 98.88 wt%
COMPOSITION: O=Cl,F,S wt% #correction for Cl, F, S
COMPOSITION: New Total wt%

COMPOSITION_TRACE:

COMPOSITION_DISCUSSION:

XRF Analysis by Branch of Analytical Chemistry, USGS, Denver. Total above includes LOI value rather than H2O values, and does not include value for FeO as it was determined at same time as H2O. Trace analysis was performed and will be added later.

END_COMPOSITION_DISCUSSION.

MICROSCOPIC_EXAMINATION:

END_MICROSCOPIC_EXAMINATION.

SPECTROSCOPIC_DISCUSSION:

END_SPECTROSCOPIC_DISCUSSION.

SPECTRAL_PURITY: 1_2_3_4_

LIB_SPECTRA_HED: where Wave Range Av_Rs_Pwr Comment

LIB_SPECTRA: splib04a r 2609 0.2-3.0µm 200 g.s.=

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

LIB_SPECTRA: splib06a r ____ 1.5-25µm 250 g.s.=