Goethite

Spectrum Details

Modality

NIR

Category

mineral

Material Type

Hydroxide

Sample ID

GDS134

Collection Locality

South Africa

Spectral Purity

1b2b3b4u # 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

Sample composed of brown powder. IMAGE_OF_SAMPLE: No Image

XRD Analysis

Found: Goethite plus unidentified reflection at 1.484 A Found: a jarosite mineral, subequal quartz, and minor goethite Comment: Goethite intensities match HS-36 and WS-220 (both in this report) Recent XRD analysis indicates pure goethite. B. Benzel.

X Units

cm⁻¹

Y Units

Absorbance

Data Points

2,126