Albite CL/SEM measurement, e<sup>-</sup> beam, Götze <i>et al.</i> 1999

Albite CL/SEM measurement, e^- beam, Götze et al. 1999

Reference	Götze et al. 1999 Götze J., Habermann D., Neuser R. D. & Richter D. K. (1999). High-resolution spectrometric analysis of rare earth elements-activated cathodoluminescence in feldspar minerals. Chemical Geology, 153(1-4), 81-91. DOI: https://doi.org/10.1016/s0009-2541(98)00153-3
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 a Scanning Electron Microscope (SEM)
Probe	Electron beam
Lines	Dy³⁺ 480 nm, 560 nm, 660 nm Nd³⁺ 880 nm, 870 nm, 900 nm Sm³⁺ 600 nm, 650 nm, 800 nm, 700 nm, 645 nm Tb³⁺ 415 nm, 420 nm, 470 nm, 490 nm, 500 nm

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