Jadeite CL/SEM measurement, 15 keV e<sup>-</sup> beam, Takahashi <i>et al.</i> 2017

Jadeite CL/SEM measurement, 15 keV e^- beam, Takahashi et al. 2017

Reference	Takahashi et al. 2017 TAKAHASHI N., TSUJIMORI T., KAYAMA M. & NISHIDO H. (2017). Journal of Mineralogical and Petrological Sciences, 112(5), 291-299. DOI: https://doi.org/10.2465/jmps.170403
Material	Jadeite [ NaAlSi₂O₆ ] Jadeite vase, Qing dynasty, China, 1700s. British Museum © Photo by Vassil on wikimedia.org, Public Domain
Technique	Cathodoluminescence (CL), using a Scanning Electron Microscope (SEM)
Instrument	JEOL JSM-5410
Probe	15 keV electron beam
Beam current	0.7 nA
Detector name	Oxford Instruments MonoCL2
Det. technology	Photomultiplier
Lines	Al³⁺ 320 nm, 360 nm, Lattice defect 700 nm

Nominal composition of Jadeite [ NaAlSi₂O₆ ].
Element	Atoms	At%	Wt%
Na	1	10	11.4
Al	1	10	13.3
Si	2	20	27.8
O	6	60	47.5