Clinochlore Fe SC-CCa-1.a

Clinochlore Fe SC-CCa-1.a — NIR2,126 points · 400012500 cm⁻¹
400060008000100001200000.05000.100Wavenumber (cm⁻¹)Absorbance

Spectrum Details

Modality
NIR
Category
mineral
Material Type
Phyllosilicate
Sample ID
SC-CCa-1.a, SC-CCa-1.b, SC-CCa-1.c
Collection Locality
Flagstaff Hill, El Dorado Co., CA
Spectral Purity
1a2a3a4_ # Clinochlore_Fe SC-CCa-1.a # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns SPECTRAL_PURITY: 1a2a3a4_ # Clinochlore_Fe SC-CCa-1.b # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns SPECTRAL_PURITY: 1a2a3a4_ # Clinochlore_Fe SC-CCa-1.c # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns
Composition / XRD
EPMA # XRF, EPMA, ICP(Trace), WChem COMPOSITION KEYWORD Oxide ASCII Amount Weight Percent, % Oxide html COMPOSITION: SiO2 33.20 wt% SiO2 COMPOSITION: TiO2 0.85 wt% TiO2 COMPOSITION: Al2O3 25.80 wt% Al2O3 COMPOSITION: Fe2O3 20.70 wt% Fe2O3 COMPOSITION: MnO 0.09 wt% MnO COMPOSITION: MgO 26.10 wt% MgO COMPOSITION: CaO less than 0.02 wt% CaO COMPOSITION: Na2O 0.22 wt% Na2O COMPOSITION: K2O less than 0.02 wt% K2O COMPOSITION: P2O5 0.05 wt% P2O5 COMPOSITION: LOI 9.23 wt% LOI COMPOSITION: Total 100.78 wt% COMPOSITION: O=Cl,F,S wt% #correction for Cl, F, S COMPOSITION: New Total wt%
Sample Description
Sample was ground in an alumina mortar and pestle and wet sieved with methanol into less than 30µm (c), 45-104µm (b), and 104-150µm (a) size fractions. King, T.V.V. and R.N. Clark, 1989, Spectral Characteristics of Chlorites and Mg-Serpentines Using high-Resolution Reflectance Spectroscopy. Jour. Geophys. Res., 13.997-14,008. IMAGE_OF_SAMPLE: NO PHOTO
XRD Analysis
This sample is representative of it structural classification. (King and Clark, 1989).
X Units
cm⁻¹
Y Units
Absorbance
Data Points
2,126

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Attribution

USGS Spectral Library Version 7, U.S. Geological Survey

License: Public Domain

DOI: 10.3133/ds1035

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