Kaolinite CM9

Spectrum Details

Modality

NIR

Category

mineral

Material Type

Phyllosilicate

Sample ID

CM9 (also known as API9)

Collection Locality

Mesa Alta, New Mexico

Spectral Purity

1b2b3b4b # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns

Composition / XRD

XRF # XRF, EPMA, ICP(Trace), WChem

Sample Description

Polymorphous with Dickite, Halloysite, and Nacrite. A spectrum for this sample was published by: Clark, R.N., King, T.V.V., Klejwa, M., Swayze, G.A., and Vergo, N., 1990, High spectral resolution reflectance spectroscopy of minerals: Journal of Geophysical Research, v. 95, no. 8B, p 12,653-12,680. who noted that it was spectrally pure. IMAGE_OF_SAMPLE:

XRD Analysis

Analysis by Norma Vergo indicates the sample is well ordered kaolinite. The less than 2µm cut is kaolinite + small amount of quartz.

X Units

cm⁻¹

Y Units

Absorbance

Data Points

2,126