Butlerite

Spectrum Details

Modality

NIR

Category

mineral

Material Type

Sulfate

Sample ID

GDS25

Collection Locality

MIT Collection

Spectral Purity

1a2a3a4a # 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

This sample was originally called Fibroferrite (Dave Sherman). Fibroferrite and butlerite have almost the same composition, differing only in the H2O content. IMAGE_OF_SAMPLE:

XRD Analysis

Pure butlerite. Konnert, Judith and Marta Flohr, 1992, unpublished data, USGS Reston, VA.

X Units

cm⁻¹

Y Units

Absorbance

Data Points

2,126