Apatite EDS spectrum, 20 keV e<sup>-</sup> beam, Torpy <i>et al.</i> 2020

Apatite EDS spectrum, 20 keV e^- beam, Torpy et al. 2020

Measurement spectrum

Measurement details

Description	EDS spectrum of apatite from the Tista River, Bangladesh
Reference	Torpy et al. 2020 Torpy, A., Wilson, N., MacRae, C., Pownceby, M., Biswas, P., Rahman, M., & Zaman, M. (2020). Deciphering the Complex Mineralogy of River Sand Deposits through Clustering and Quantification of Hyperspectral X-Ray Maps. Microscopy and Microanalysis, 26(4), 768-792 https://doi.org/10.1017/S143192762000135X
Date measured	2018-05-01
Material	Apatite [ Ca₅(PO₄)₃(OH, F, Cl) ]
Analysis technique	Energy dispersive x-ray spectrometry (EDS)
Instrument	JEOL 8500F
Probe	20 keV electron beam
Beam current	69.64 nA
Probe diameter	2 μm
Detector name	2× Bruker XFLASH
Det. technology	Silicon drift detector (SDD)
Takeoff angle	40°
Max. throughput	260 kcounts/s
Real time	2225.61 s
Live time	1339.53 s
Dead time	39.8129 %
Channel count	4096
Energy range	-477.548 … 19989.5 eV
Gain	4.99806 eV/channel
Intensity range	7.273×10⁶ counts
Integral	4.8446×10⁸ counts
Related measurement	Apatite CL spectrum, 20 keV e^- beam, Torpy et al. 2020 (co-measured)

Specimen details

Name	Tista 2020 D4 Shaker
Owner	CSIRO
Locality	Teesta River, Bangladesh
Type	Mineral concentrate
Form	Polished section, epoxy mount
Other measurements	CL Albite CL spectrum, 20 keV e^- beam, Torpy et al. 2020 Apatite CL spectrum, 20 keV e^- beam, Torpy et al. 2020 Grossular CL spectrum, 20 keV e^- beam, Torpy et al. 2020 K feldspar CL spectrum, 20 keV e^- beam, Torpy et al. 2020 Kyanite CL spectrum, 20 keV e^- beam, Torpy et al. 2020 Monazite-(Ce) CL spectrum, 20 keV e^- beam, Torpy et al. 2020 Quartz CL spectrum, 20 keV e^- beam, Torpy et al. 2020 Titanite CL spectrum, 20 keV e^- beam, Torpy et al. 2020 Xenotime-(Y) CL spectrum, 20 keV e^- beam, Torpy et al. 2020 Zircon CL spectrum, 20 keV e^- beam, Torpy et al. 2020 EDS Albite EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Allanite-(Ce) EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Amphibole EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Amphibole EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Amphibole EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Amphibole EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Andesine EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Augite EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Augite EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Biotite EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Bytownite EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Chlorite (var. Mg, Fe) EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Chlorite (var. Mg, Fe) EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Epidote EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Garnet (var. Ca, Fe) EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Garnet (var. Fe, Mg) EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Garnet (var. Fe, Mn, Ca) EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Garnet (var. Fe, Mn, Ca) EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Garnet EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Garnet EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Grossular EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Ilmenite (var. Mn) EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Ilmenite EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 K feldspar EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Kyanite EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Monazite-(Ce) EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Muscovite EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Oligoclase EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Quartz EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Staurolite EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Titanite EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Titanohematite EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Xenotime-(Y) EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Zircon EDS spectrum, 20 keV e^- beam, Torpy et al. 2020 Zoisite EDS spectrum, 20 keV e^- beam, Torpy et al. 2020

Specimen image

Clustered phase map of river sands (D4 shaker), from the Tista River, Bangladesh. From Torpy et al. 2020

Composition

Composition from this measurement.
Element	Atoms	At%	Wt%
Ca	1.68	24.2	38.7
Ti	0.00145	0.021	0.04
Fe	0.00904	0.13	0.29
P	1	14.4	17.8
O	4.24	61.2	39

Apatite EDS spectrum, 20 keV e- beam, Torpy et al. 2020

Measurement spectrum

Measurement details

Specimen details

Specimen image

Composition

Apatite EDS spectrum, 20 keV e^- beam, Torpy et al. 2020