The National Mineral Reference Collection (NMC) digital spectral (VIS-NIR-SWIR) library, part IV : spectral database of REE-Nb-U-Th-bearing minerals for hyperspectral applications / J.B. Percival, D.J....: M183-2/8987E-PDF

"The Geological Survey of Canada National Reference Mineral Collection (NMC) contains well over 60,000-catalogued specimens. These reference specimens offer a unique opportunity to be used as standards for comparison in mineralogical research or to develop new methods in geochemistry and geochronology research. For example, tourmaline from the Collection helped establish a new geochemical method. In 2013, about 150 specimens from the Kodama Collection of clay minerals were used to develop an in-house infrared spectral library for mineralogical research. Following this, the focus was on rare earth elements (REE)-, niobium (Nb), uranium (U)- and thorium (Th)-bearing minerals housed in the NMC. For this spectral library, over 1300 specimens were examined and spectral analyses processed for about 480 specimens. … This Open File is aimed at making the spectral information more accessible to the wider remote sensing community"--Introduction, page 1.

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