Spectroscopy Lab

Multimedia

Filter Total Items: 6
Figure 1. Photographs of commercial, expanded vermiculite ore from the four major historical sources.
November 6, 2017

Photographs of commercial, expanded vermiculite ore.

Figure 1. Photographs of commercial, expanded vermiculite ore from the four major historical sources: Libby, Montana; Palabora, South Africa; Louisa, Virginia; and Enoree, South Carolina. Scale of the rightmost image in each set is the same as the left image unless otherwise labeled. Note (k) shows Libby vermiculite insulation with admixed cellulose whereas (l) shows

...
Image shows a hyperspectral map of deposit types
June 1, 2014

Alaska Hyperspectral Minerals Map

Preliminary map of selected minerals for a portion of the Nabesna area of interest, near Orange Hill and Bond Creek deposits in Alaska. The image, derived from HyMap imaging spectrometer data collected in July 2014, is draped on shaded relief.

Bluish-gray elongate amphibole bundles found in samples of commercial expanded vermiculite ore from Libby.
May 5, 2013

Bluish-gray elongate amphibole bundles found in samples.

Figure 2. Bluish-gray elongate amphibole bundles found in samples of commercial expanded vermiculite ore from Libby.

 Figure 3.   Secondary electron images of elongate amphibole bundles from the sink fractions of commercial expanded vermiculite
May 5, 2012

Secondary electron images of elongate amphibole bundles.

Figure 3. Secondary electron images of elongate amphibole bundles from the sink fractions of commercial expanded vermiculite ore.

USGS CoreCast
September 23, 2009

Water on the Moon

Interview with USGS scientist Dr. Roger Clark about his Sept. 24 Science article that suggests water exists on the moon. Imaging spectroscopy led Clark and others to this discovery which opens the possibilities into further moon exploration.