Albite CL/SEM spectrum, 20 keV e<sup>-</sup> beam, CSIRO 2016

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

Description	CL/SEM spectrum of Albite
Reference	Otherwise unpublished luminescence spectra measured by the CSIRO Mineral Resources Microbeam Laboratory, Clayton https://research.csiro.au/microbeam-lab/
Material	Albite [ NaAlSi₃O₈ ] Albite specimen from Crete, Greece. Scale at bottom of image is one inch with a rule at one cm. © Photo by Rock Currier (via Wikimedia Commons), CC-BY 3.0
Specimen temperature	Ambient
Analysis 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	-0.882 … 208 counts
Integral	25090.9 counts
Lines	Al-O- -Al 2.4 — 3.3 eV (12%), Fe 1.7 eV (7%), Unspecified 4.286 eV (100%), 1.342 eV

Nominal composition of Albite [ NaAlSi₃O₈ ].
Element	Atoms	At%	Wt%
Na	1	7.69	8.77
Al	1	7.69	10.3
Si	3	23.1	32.1
O	8	61.5	48.8

CL/SEM spectrum of Albite