Baddeleyite (var. lunar) CL spectrum, 15 keV e<sup>-</sup> beam, CSIRO/WUStL Apollo 12 (2019)

Baddeleyite (var. lunar) CL spectrum, 15 keV e^- beam, CSIRO/WUStL Apollo 12 (2019)

Measurement spectrum

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Measurement details

Description	CL spectrum of Baddeleyite (var. lunar), from Apollo 12 mission
Reference	Otherwise unpublished work by CSIRO & WUStL, Apollo 12, AMAS XV. Feb 2019 https://research.csiro.au/microbeam-lab/
Date measured	2019-02-21
Material	Baddeleyite (var. lunar) [ ZrO₂ ]
Analysis technique	Cathodoluminescence (CL)
Instrument	JEOL 8500F
Probe	15 keV electron beam
Beam current	39.68 nA
Probe diameter	1 μm
Acquisition time	21.2815 s
Channel count	1024
Wavelength range	199.467 … 970.586 nm
Intensity range	-89.2 … 1.585×10⁵ counts
Integral	2.9689×10⁷ counts
Line	Intrinsic defect 2.467 eV (100%)

Specimen details

Name	Apollo 12032-366-19x
Owner	NASA
Locality	Bench Crater, Ocean of Storms, 3.01239°S 23.42157°W, The Moon
URL	https://curator.jsc.nasa.gov/lunar/lsc/12032.pdf
Type	Rock fragment
Form	Polished section, epoxy mount
Other measurements	Alkali feldspar (var. lunar) CL spectrum, 15 keV e^- beam, CSIRO/WUStL Apollo 12 (2019) Apatite (var. lunar) CL spectrum, 15 keV e^- beam, CSIRO/WUStL Apollo 12 (2019) Plagioclase (var. lunar) CL spectrum, 15 keV e^- beam, CSIRO/WUStL Apollo 12 (2019) Silica (var. lunar) CL spectrum, 15 keV e^- beam, CSIRO/WUStL Apollo 12 (2019) Zirconolite (var. lunar) CL spectrum, 15 keV e^- beam, CSIRO/WUStL Apollo 12 (2019)

Specimen image

Clustered phase map of Apollo 12032-366-19x specimen, from Ocean of Storms, 3.01239°S 23.42157°W, The Moon

© (C) 2019 CSIRO Mineral Resources

Composition

Nominal composition of Baddeleyite (var.lunar) [ ZrO₂ ].
Element	Atoms	At%	Wt%
Zr	1	33.3	74
O	2	66.7	26

Measurement image

CL spectrum of Baddeleyite (var. lunar), from Apollo 12 mission

© OpticalFit spectrum plot by A. Torpy. (C) 2023 CSIRO Mineral Resources