Zircon

Spectrum Details

Modality

NIR

Category

mineral

Material Type

Nesosilicate

Sample ID

WS522

Collection Locality

Gurpui, Goias, Brazil

Spectral Purity

1a2_3_4_ # WS522 # 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

less than 250 µ grain size. IMAGE_OF_SAMPLE:

XRD Analysis

40 kV - 30 mA, 6.5-9.5 keV File: zircn522.out, -.mdi Reference: Borg and Smith (1969). Found: zircon, trace quartz? Comment: Zircon very well crystallized. An very weak but distinct reflection that is not indexable as zircon lies in the position of the strong quartz (100). The strongest quartz reflection (101) lies at the position of the strong zircon (200) and thus could not be seen, if present. J.S. Huebner, J. Pickrell, T. Schaefer, written communication 1994

X Units

cm⁻¹

Y Units

Absorbance

Data Points

2,126