File:Ulexite on flickr (21734610).jpg
![File:Ulexite on flickr (21734610).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/c/cc/Ulexite_on_flickr_%2821734610%29.jpg/800px-Ulexite_on_flickr_%2821734610%29.jpg?20181204133537)
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Captions
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Summary
[edit]DescriptionUlexite on flickr (21734610).jpg |
Ulexite is a desert mineral that combines calcium, sodium, water molecules, and boron in a complicated arrangement. It forms in alkali salt flats where the local water is rich in boron. In rock shops, cut slabs of ulexite like this one are commonly sold as "TV rock." It consists of thin crystals that act like optical fibers, so if you lay it on a paper, the printing appears projected on the UPPER SURFACE, very hard to see on a 2D photo.But if you look at it sideways the rock is not transparent at all. |
Date | |
Source | Ulexite on flickr |
Author | Dave Merrill from Perry, Utah, USA |
Licensing
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This image was originally posted to Flickr by Utah~Dave AA7IZ at https://flickr.com/photos/33185390@N00/21734610. It was reviewed on 4 December 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
4 December 2018
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:35, 4 December 2018 | ![]() | 1,909 × 1,340 (499 KB) | Luisbrudna (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | Canon |
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Camera model | Canon PowerShot A80 |
Exposure time | 1/320 sec (0.003125) |
F-number | f/4 |
Date and time of data generation | 14:04, 26 June 2005 |
Lens focal length | 7.8125 mm |
Orientation | Normal |
File change date and time | 14:04, 26 June 2005 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 14:04, 26 June 2005 |
Meaning of each component |
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Image compression mode | 5 |
APEX shutter speed | 8.3125 |
APEX aperture | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Center weighted average |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 8,114.2857142857 |
Focal plane Y resolution | 8,114.2857142857 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |