Adularia CL/SEM spectrum, 20 keV e- beam, CSIRO 2016

Measurement details

Description CL/SEM spectrum of Adularia
Reference Otherwise unpublished luminescence spectra measured by the CSIRO Mineral Resources Microbeam Laboratory, Clayton
https://research.csiro.au/microbeam-lab/
Material Adularia [ KAlSi3O8 ]
Specimen temperature Ambient
Technique Cathodoluminescence (CL), using an Electron Probe Micro-Analyser (EPMA)
Instrument JEOL 8500F
Probe 20 keV electron beam
Beam current 10 nA
Probe diameter 20 μm
Channel count 1024
Energy range 1.276 … 6.21118 eV
Intensity range -0.0237662 … 30.2049 counts
Integral 12500.9 counts
Data filter Savitzky-Golay, 3rd order, ±15 channels
Lines Fe3+ 1.757 eV (45%), Ti4+ 2.625 eV (100%), Unspecified 1.404 eV (46%)

Composition

Nominal composition of Adularia [ KAlSi3O8 ].
Element Atoms At% Wt%
K 1 7.69 14
Al 1 7.69 9.69
Si 3 23.1 30.3
O 8 61.5 46

Measurement spectrum

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Measurement image

Image of CL/SEM spectrum of Adularia

© (C) 2016 CSIRO Mineral Resources