Infrared (Visible-Near Infrared-Shortwave Infrared (VNIR-SWIR)) spectroscopy is a cost-effective technique for mineral identification in the field. Modern hand-held spectrometers are equipped with on-board spectral libraries that enable rapid, qualitative analysis of most minerals and
facilitate recognition of key alteration minerals for exploration. Spectral libraries can be general or customized for specific mineral deposit environments. To this end, careful collection of spectra in a controlled environment on pure specimens of key minerals was completed using the National
Mineral Reference Collection (NMC) of the Geological Survey of Canada. The spectra collected from specimens in the 'Kodama Clay Collection' were processed using spectral plotting software and each new example was validated before being added to a group of spectra considered for incorporation
into the on-board library of the handheld ASD-TerraSpec Halo near-infrared (NIR) mineral identification instrument. Spectra from an additional suite of mineral samples of the NMC containing REE, U, Th, and/or Nb are being prepared for a new, publicly available spectral library. These
minerals commonly occur in carbonatite or alkali intrusive deposits, and as such will assist in the exploration for critical metals.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
NATIONAL MINERAL REFERENCE COLLECTION;
OPTICAL REFLECTANCE SPECTROSCOPY;
Document Type: Research Article
Publication date: 01 June 2018
This article was made available online on 22 May 2018 as a Fast Track article with title: "PREPUBLICATION: CUSTOMIZED SPECTRAL LIBRARIES FOR EFFECTIVE MINERAL EXPLORATION: MINING NATIONAL MINERAL COLLECTIONS".
More about this publication?
The JOURNAL publishes articles of interest to the international community of clay scientists, including but not limited to areas in mineralogy, crystallography, geology, geochemistry, sedimentology, soil science, agronomy, physical chemistry, colloid chemistry, ceramics, petroleum engineering, foundry engineering, and soil mechanics. Clays and Clay Minerals exists to disseminate to its worldwide readership the most recent developments in all of these aspects of clay materials. Manuscripts are welcome from all countries.
Clays and Clay Minerals is the official publication of The Clay Minerals Society.
The Editor-in-Chief is Professor Joseph W. Stucki [email protected]
Publications of The Clay Minerals Society
- Editorial Board
- Information for Authors
- Membership Information
- Annual Meeting of The Clay Minerals Society
- Ingenta Connect is not responsible for the content or availability of external websites