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TitleThe National Mineral Reference Collection (NMC) digital spectral (VIS-NIR-SWIR) library, part II: REE-Nb-U-Th-bearing minerals
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorPercival, J BORCID logo; Abraham, A C; Laudadio, A B; Sinclair, C D
SourceGeological Survey of Canada, Open File 8619, 2019, 16 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
RelatedThis publication is related to the following publications
File formatreadme
File formatpdf (Adobe® Reader®); rtf; jpg; txt
Subjectsmineralogy; Science and Technology; minerals; mineral specimens; spectral analyses; spectrometric analyses; niobium; uranium; thorium; nomenclature; National Mineral Collection; Collections
Illustrationstables; photographs; sprectra
ProgramScience laboratory network Science laboratory network coordination
Released2019 11 13
AbstractThis Open File is the second report providing spectral characteristics of select mineral samples held in the Geological Survey of Canada National (Reference) Mineral Collection (NMC). The focus of this spectral library is on minerals containing REE, Nb, U and Th of which there were 428 samples suitable for analyses out of a total of 1300 specimens. Sample spectra were collected using a TerraSpec Pro™ 4 Spectrometer on loan from Malvern Panalytical. Spectral collection was highly controlled and performed in a dark box using a contact probe or with the aid of a Muglight. All samples were digitally photographed. A hyperlinked Master Table provides access to a plot of each spectrum, description of each sample, raw data in text format and photograph of the specimen. The spectra were not vetted as to purity nor analysed by alternate or complementary methods such as X-ray diffraction. Original information recorded on each NMC card is provided in each description.
Summary(Plain Language Summary, not published)
This Open File report provides the second spectral database of reference samples housed in the National Mineral Collection (NMC). The focus was on REE-Nb-U-Th-bearing minerals found in a variety of ore deposits. This database is a foundation for building spectral libraries for exploration of critical metals.

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