Natrolite+Zeolite

Spectrum Details

Modality

FTIR

Category

soil

Material Type

Intimate

Sample ID

HS168.1B, HS168.2B, HS168.3B, HS168.4B

Collection Locality

Springfield, Oregon

Spectral Purity

1b2_3_4_ # HS168.1B # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns SPECTRAL_PURITY: 1b2_3_4_ # HS168.2B # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns SPECTRAL_PURITY: 1b2b3b4b # HS168.3B # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns SPECTRAL_PURITY: 1b2_3_4_ # HS168.4B # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns

Composition / XRD

None # XRF, EPMA, ICP(Trace), WChem COMPOSITION_TRACE: None

Sample Description

Dimorphous with Tetranatrolite. "T-21 Natrolite 168B--Springfield, Ore. Na2Al2- Si3O10.2H2O: This Zeolite occurs in cavities in basalt's and related rocks and also as an alteration product of nepheline, sodalite or plagioclase. Its major features occur at 0.85µ, 1.165µ, 1.44µ, and 1.95µ. These bands are considerably sharper than in the stilbite." Hunt, G.R., J.W. Salisbury, and C.J. Lenhoff, 1973, Visible and near-infrared spectra of minerals and rocks: VI. Additional silicates. Modern Geology, v. 4, p. 85-106. IMAGE_OF_SAMPLE:

XRD Analysis

Natrolite + large amount of analcime + small amount of clinoptilolite + large amount other. (Norma Vergo) Spectrally contaminated by other zeolites. (Norma Vergo)

X Units

cm⁻¹

Y Units

Absorbance

Data Points

1,801