Image:Thenardite,byu.jpg
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Thenardite,byu.jpg (700 × 352 pixels, file size: 309 KB, MIME type: image/jpeg)
Thenardite. Collected by A. E. Foote, 1894, from Borax Lake, California.
Mineral collection of Bringham Young University Department of Geology, Provo, Utah. Photograph by Andrew Silver. BYU index 10- 7032b, Na_2(SO_4).
URL: http://libraryphoto.cr.usgs.gov/htmllib/btch572/btch572j/btch572z/byu01097.jpg
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This image is a work of a United States Geological Survey employee, taken or made during the course of the person's official duties. As a work of the United States Government, the image is in the public domain. For more information, see the USGS copyright policy. See Wikipedia:Public domain and Wikipedia:Copyrights for more details. |  |
File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 00:50, 10 May 2008 | 700×352 (309 KB) | Tillman (Talk | contribs) | (Thenardite. Collected by A. E. Foote, 1894, from Borax Lake, California. Mineral collection of Bringham Young University Department of Geology, Provo, Utah. Photograph by Andrew Silver. BYU index 10- 7032b, Na_2(SO_4). URL: http://libraryphoto.cr.usgs.) |
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Metadata
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| Camera manufacturer | SONY |
|---|---|
| Camera model | CYBERSHOT |
| Exposure time | 1/50 sec (0.02) |
| F-number | f/2.8 |
| Date and time of data generation | 19:35, 9 June 2002 |
| Lens focal length | 6.5 mm |
| Orientation | Normal |
| Horizontal resolution | 72 dpi |
| Vertical resolution | 72 dpi |
| Software used | Adobe Photoshop CS2 Windows |
| File change date and time | 17:12, 6 September 2007 |
| Y and C positioning | 2 |
| Exposure Program | Normal program |
| ISO speed rating | 80 |
| Exif version | 2.1 |
| Date and time of digitizing | 19:35, 9 June 2002 |
| Image compression mode | 2 |
| Exposure bias | 0 |
| Maximum land aperture | 3 |
| Metering mode | Spot |
| Light source | Tungsten (incandescent light) |
| Flash | 0 |
| Color space | sRGB |
