Jarosite Rhyolite

Spectrum Details

Modality

NIR

Category

soil

Material Type

Intimate

Sample ID

CU91-20A

Collection Locality

Eastern Alteration Center, Cuprite, Nevada, USA

Spectral Purity

1a2_3_4_ # 1= 0.2-3, 2= 1.5-6, 3= 6-25, 4= 20-150 microns

Composition / XRD

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

Sample Description

This sample is of a jarosite coating on a hydrothermally altered rhyolite. The sample was collected from the relict eastern hydrothermal center which was active about 7.6 Ma. Sample was collected from the northern portion of the eastern center.

XRD Analysis

Jarosite coating XRD: K-jarosite.

X Units

cm⁻¹

Y Units

Absorbance

Data Points

2,126