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Original file (2,092 × 1,569 pixels, file size: 9.4 MB, MIME type: image/tiff)
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Summary
| Description |
English: This is a large K-feldspar grain in granite (03MW2623) showing string perthite. Note the interlocking quartz grains in the matrix. |
| Date | |
| Source | https://pubs.usgs.gov/of/2003/of03-221/htmldocs/thinsect/03mw2623ts.htm |
| Author | By B.W. Hallett, V. F. Paskevich, L.J. Poppe, S.G. Brand, and D.S. Blackwood |
Licensing
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This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.
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File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:44, 22 March 2019 |  | 2,092 × 1,569 (9.4 MB) | Qtz arenite | User created page with UploadWizard |
File usage
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