Allanite REE crystal

Spectrum Details

Modality

NIR

Category

mineral

Material Type

Sorosilicate

Sample ID

WS532

Collection Locality

Besner Mine, Henvey, Ontario, Canada

Spectral Purity

1a2_3_4_ # 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

Large black massive sample with vitrious luster, conchoidal fractures, and thin white veins. IMAGE_OF_SAMPLE:

XRD Analysis

Anaylsis indicates a poorly crystalline allanite; sharp, symmetrical peaks are absent; the allanite phase is represented by broad, rounded reflections which are consistent with allanite in a metamict state. (R. Driscoll)

X Units

cm⁻¹

Y Units

Absorbance

Data Points

2,126