Released
Dataset
Mineral reflectance spectra and chemistry of 29 rare earth-bearing minerals and rare earth oxide powders including niobium- and tantalum-oxide powder
Cite as:
Koerting, Friederike; Herrmann, Sabrina; Boesche, Nina Kristin; Rogass, Christian; Mielke, Christian; Koellner, Nicole; Altenberger, Uwe (2019): Mineral reflectance spectra and chemistry of 29 rare earth-bearing minerals and rare earth oxide powders including niobium- and tantalum-oxide powder. V. 2.0. GFZ Data Services. https://doi.org/10.5880/GFZ.1.4.2019.004Status
I N R E V I E W : Koerting, Friederike; Herrmann, Sabrina; Boesche, Nina Kristin; Rogass, Christian; Mielke, Christian; Koellner, Nicole; Altenberger, Uwe (2019): Mineral reflectance spectra and chemistry of 29 rare earth-bearing minerals and rare earth oxide powders including niobium- and tantalum-oxide powder. V. 2.0. GFZ Data Services. https://doi.org/10.5880/GFZ.1.4.2019.004Abstract
The data set contains mineral chemical analyses of 32 rare earth element (REE) -bearing minerals (REMin) and rare-earth oxides (REO) and their corresponding hyperspectral spectra. The hyperspectral data was acquired with the HySpex system in a range of 400 – 2500 nm and is presented in a spectral library. The resulting reflectance data are scaled from 0 - 10000. The two Rare Earth Element (REE) libraries consist of the spectra of 16 rare earth oxides powders (REO) and 14 REE-bearing minerals (REMin). In addition, it contains the spectra of niobium- and tantalum oxide, two elements technically not part of the REEs. The spectral library presented here is part of a bigger collection of spectral libraries including copper-bearing surface samples from Apliki copper-gold-pyrite mine (Koerting et al., 2019a, http://doi.org/10.5880/GFZ.1.4.2019.005) and copper-bearing minerals (Koellner et al., 2019, http://doi.org/10.5880/GFZ.1.4.2019.003). These libraries aim to give a spectral overview of important resources and ore mineralization.Additional Information
Version 2.0 (21 December 2020): completely restructured Technical Report and data files according to the review recommendations of the related article in Earth System Science Data (ESSD).Details:
• New title of the data publication
• Spectral library "GFZ_HySpex_REMin" -> typo correction of the spectral names in the ENVI-standard + .hdr file and the .txt file
• addition of spectra names in the table that lists the sample info
• reorganisation of the sample certificates table
Authors
Contact
- Foerster, Saskia; GFZ German Research Centre for Geosciences, Potsdam, Germany;
Contributors
Foerster, SaskiaKeywords
rare earth minerals, spectral library, rare earth oxides, hyperspectral, geochemical analyses, X-Ray Fluorescence, XRF, Electron microprobe analyser, EMPAGCMD Science Keywords
- EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROCESSES > CHEMICAL WEATHERING
- EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > METALS > METALS PHYSICAL/OPTICAL PROPERTIES
- EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > MINERALS > MINERAL PHYSICAL/OPTICAL PROPERTIES
- Earth Remote Sensing Instruments > Passive Remote Sensing > Spectrometers/Radiometers > Imaging Spectrometers/Radiometers