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Using Light to Identify Minerals
Twitter: @ADouglasPhotos - colours emitted by rock samples under black lights.
Photo Details
| Date Taken: | Sep 29, 2013 |
| Date Uploaded: | Jan 30, 2017 |
| Location: | Kamloops, British Columbia, Canada |
| Camera: | Canon EOS 5D Mark II |
| Focal Length: | 30 mm |
| Shutter Speed: | 1/40 sec |
| Aperture: | f/3.2 |
| ISO: | 6400 |
| Copyright: | © Allen Douglas |
| Categories: | Nature |