Sanidine+albite

Spectrum Details

Modality

NIR

Category

soil

Material Type

Intimate

Sample ID

NMNH103200

Collection Locality

Higasinuiro-gun, Taiji, Wakayama, Japan

Spectral Purity

1c2b3b4_ # SAMPLE_ID: NMNH103200 # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns

Composition / XRD

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

Sample Description

"Result of petrographic examination: Many small (0.5cm) euhedral crystals totaling 6.49 g. almost all have some adhering clay/limonite, to be removed by brushing or ultrasonic cleaning. Under the microscope, a very, very few acicular inclusions (rutile?) can be seen. Otherwise, very pure." Salisbury, J. W., Walter, L. W., and Vergo, N., 1987, Mid-Infrared (2.1-25µm) Spectra of Minerals: First Edition, U.S. Geological Survey Open File Report 87-263. IMAGE_OF_SAMPLE:

XRD Analysis

Sanidine plus a moderate amount of albite. Salisbury, J. W., Walter, L. W., and Vergo, N., 1987, Mid-Infrared (2.1-25µm) Spectra of Minerals: First Edition, U.S. Geological Survey Open File Report 87-263.

X Units

cm⁻¹

Y Units

Absorbance

Data Points

2,126