Reflectance spectroscopy and geochemical analysis of rare earth element- bearing tailings: A case study of two abandoned tin mine sites in Bangka Island, Indonesia

Imam Purwadi, H.M.A. van der Werff (Corresponding Author), C. Lievens

Research output: Contribution to journalArticle

Abstract

Rare Earth Elements (REEs) are indispensable in the manufacturing of renewable energy and clean technologies. Due to the high demand for REEs, mine waste, called “tailings”, are sought because they could be a possible resource for REEs. In this study, tailing samples were collected from two tin mine tailings in Bangka Island, Indonesia, and analyzed using inductively coupled plasma optical emission spectrometry, x-ray powder diffraction, and Fourier transform infrared - attenuated total reflectance. Results showed that the tailing samples were identified as quartz and contained a high amount of erbium between 111.6 and 3768.4 μg/g. Absorption features in infrared reflectance spectra were related to REE concentrations. We found a positive correlation between erbium and two absorption features that have not been reported before: One feature is centered at 500 nm with a correlation of 0.685, and one is centered at 674 nm with a correlation of 0.829.
LanguageEnglish
Pages239-247
JournalInternational Journal of Applied Earth Observation and Geoinformation (JAG)
Volume74
DOIs
StatePublished - 2019

Fingerprint

Tin mines
Bearings (structural)
Abandoned mines
Tailings
Rare earth elements
tin
tailings
reflectance
rare earth element
spectroscopy
Spectroscopy
Erbium
Environmental technology
Infrared radiation
mine waste
Inductively coupled plasma
diffraction
Spectrometry
Fourier transform
spectrometry

Keywords

  • Rare earth element
  • Tailing
  • Spectral reflectance
  • Quartz
  • Near infrared
  • Bangka Island
  • Indonesia
  • ITC-ISI-JOURNAL-ARTICLE

Cite this

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title = "Reflectance spectroscopy and geochemical analysis of rare earth element- bearing tailings: A case study of two abandoned tin mine sites in Bangka Island, Indonesia",
abstract = "Rare Earth Elements (REEs) are indispensable in the manufacturing of renewable energy and clean technologies. Due to the high demand for REEs, mine waste, called “tailings”, are sought because they could be a possible resource for REEs. In this study, tailing samples were collected from two tin mine tailings in Bangka Island, Indonesia, and analyzed using inductively coupled plasma optical emission spectrometry, x-ray powder diffraction, and Fourier transform infrared - attenuated total reflectance. Results showed that the tailing samples were identified as quartz and contained a high amount of erbium between 111.6 and 3768.4 μg/g. Absorption features in infrared reflectance spectra were related to REE concentrations. We found a positive correlation between erbium and two absorption features that have not been reported before: One feature is centered at 500 nm with a correlation of 0.685, and one is centered at 674 nm with a correlation of 0.829.",
keywords = "Rare earth element, Tailing, Spectral reflectance, Quartz, Near infrared, Bangka Island, Indonesia, ITC-ISI-JOURNAL-ARTICLE",
author = "Imam Purwadi and {van der Werff}, H.M.A. and C. Lievens",
year = "2019",
doi = "10.1016/j.jag.2018.09.006",
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volume = "74",
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journal = "International Journal of Applied Earth Observation and Geoinformation (JAG)",
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AU - Purwadi,Imam

AU - van der Werff,H.M.A.

AU - Lievens,C.

PY - 2019

Y1 - 2019

N2 - Rare Earth Elements (REEs) are indispensable in the manufacturing of renewable energy and clean technologies. Due to the high demand for REEs, mine waste, called “tailings”, are sought because they could be a possible resource for REEs. In this study, tailing samples were collected from two tin mine tailings in Bangka Island, Indonesia, and analyzed using inductively coupled plasma optical emission spectrometry, x-ray powder diffraction, and Fourier transform infrared - attenuated total reflectance. Results showed that the tailing samples were identified as quartz and contained a high amount of erbium between 111.6 and 3768.4 μg/g. Absorption features in infrared reflectance spectra were related to REE concentrations. We found a positive correlation between erbium and two absorption features that have not been reported before: One feature is centered at 500 nm with a correlation of 0.685, and one is centered at 674 nm with a correlation of 0.829.

AB - Rare Earth Elements (REEs) are indispensable in the manufacturing of renewable energy and clean technologies. Due to the high demand for REEs, mine waste, called “tailings”, are sought because they could be a possible resource for REEs. In this study, tailing samples were collected from two tin mine tailings in Bangka Island, Indonesia, and analyzed using inductively coupled plasma optical emission spectrometry, x-ray powder diffraction, and Fourier transform infrared - attenuated total reflectance. Results showed that the tailing samples were identified as quartz and contained a high amount of erbium between 111.6 and 3768.4 μg/g. Absorption features in infrared reflectance spectra were related to REE concentrations. We found a positive correlation between erbium and two absorption features that have not been reported before: One feature is centered at 500 nm with a correlation of 0.685, and one is centered at 674 nm with a correlation of 0.829.

KW - Rare earth element

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KW - Spectral reflectance

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KW - Near infrared

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