International Space Station 180 mm Photograph

Image credit:  Image Science and Analysis Laboratory, NASA Johnson Space Center (http://eol.jsc.nasa.gov)

 

 

U.S. SILICA CORP. NORTH QUARRY, MILL CREEK

34.23N, 96.48 W

The link is to a listing of mines and minerals in Oklahoma.

 

Note: The images do not do the sample justice. This has to be the purest white I have ever seen in a sand.

 

 

 

SAMPLE #1

 

ZERO MAGNIFICATION IMAGE

REFLECTANCE SPECTRUM

   

 

 

3X MAGNIFICATION (RED LINE   = 1MM)

   

SAMPLE #2

 

ZERO MAGNIFICATION IMAGE

REFLECTANCE SPECTRUM

 

 

1X MAGNIFICATION (RED LINE   = 1MM)

3X MAGNIFICATION (RED LINE   = 1MM)

Return to Oklahoma  Sand to view a high resolution version of the 3X images.

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