Jarosite SJ-1 H3O 10-20%

Spectrum Details

Modality

FTIR

Category

mineral

Material Type

Sulfate

Sample ID

Jarosite SJ-1 H3O 10-20%, Jarosite SJ-1 H3O (20%)

Collection Locality

Synthetic, Charlie Alpers, USGS

Spectral Purity

1b2b3b4_ # 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:

Sample Description

IMAGE_OF_SAMPLE: NO PHOTO

XRD Analysis

SJ-1 H3O-(10-20%) Jarosite, Box #1, 45 kV - 35 mA, 7.4-9.5 keV SJ-1 H3O-(10-20%) Jarosite, Box #3, 40 kV - 30 mA, 7.3-9.5 keV Reference: JCPDS #31-650 (hydronium jarosite) Found: member of alunite group, spacing's match hydronium jarosite Comment: Good correspondence with the JCPDS data for synthetic hydronium jarosite and the brownish color suggest this alunite [jarosite?] is iron- and hydronium-rich. The two samples appear to duplicate each other. Both patterns show a very very weak peak at 2.38 Angstroms. Sharp peaks indicate good crystallinity." J.S. Huebner, J. Pickrell, and J. Randow, 1993, written communication.

X Units

cm⁻¹

Y Units

Absorbance

Data Points

1,801