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Principles of Spectroscopy

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Hyperspectral Imaging of Mineral Resources from New and Old Origins: Minerals for the Nation’s Economy and Utilization of Legacy Mine Lands

This project will produce maps of surface mineralogy at 15 m spatial resolution covering the largest contiguous area of hyperspectral imagery that has ever been assembled for the U.S., over 380,000 sq. km. in California and Nevada. We are developing new methods to apply these data to map critical minerals, including minerals critical for battery fabrication, and to evaluate resources available...
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Mineral Resources Program, Geology, Energy & Minerals Science Center, Geology, Geophysics, and Geochemistry Science Center, Spectroscopy Lab
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Hyperspectral Imaging of Mineral Resources from New and Old Origins: Minerals for the Nation’s Economy and Utilization of Legacy Mine Lands

This project will produce maps of surface mineralogy at 15 m spatial resolution covering the largest contiguous area of hyperspectral imagery that has ever been assembled for the U.S., over 380,000 sq. km. in California and Nevada. We are developing new methods to apply these data to map critical minerals, including minerals critical for battery fabrication, and to evaluate resources available...
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Scanning Electron Image of Vermiculite Asbestos

Using In Situ IR Spectroscopy Measurements of Vermiculite Insulation to Determine Its Origin

The goal of this study was to determine if in situ near-infrared reflectance measurements, using portable spectrometers, could be used to reliably identify the source of vermiculite ore and therefore its potential to contain asbestos. The method developed can be used to determine vermiculite insulation's source and estimate its potential amphibole content, providing low-cost analysis with onsite...
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Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Spectroscopy Lab
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Using In Situ IR Spectroscopy Measurements of Vermiculite Insulation to Determine Its Origin

The goal of this study was to determine if in situ near-infrared reflectance measurements, using portable spectrometers, could be used to reliably identify the source of vermiculite ore and therefore its potential to contain asbestos. The method developed can be used to determine vermiculite insulation's source and estimate its potential amphibole content, providing low-cost analysis with onsite...
Learn More