Bassanite

Spectrum Details

Modality

NIR

Category

mineral

Material Type

Sulfate

Sample ID

GDS145

Collection Locality

Heated Gypsum to Form

Spectral Purity

1a2a3a4u # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns

Composition / XRD

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

Sample Description

dehydration of gypsum at 60°C hydrous sulfate Spectrum originally published in: Crowley, J.K., 1991, Visible and Near-Infrared (0.4 - 2.5µm) Reflectance Spectra of Playa Evaporite Minerals: Journal of Geophysical Research, vol 96, no.B10, p. 16,231-16,240. IMAGE_OF_SAMPLE:

X Units

cm⁻¹

Y Units

Absorbance

Data Points

2,126