File:Nephrite jade (fluvial clast from the Susitna River near Talkeetna, Alaska, USA) 3 (48162891866).jpg
![File:Nephrite jade (fluvial clast from the Susitna River near Talkeetna, Alaska, USA) 3 (48162891866).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/5/58/Nephrite_jade_%28fluvial_clast_from_the_Susitna_River_near_Talkeetna%2C_Alaska%2C_USA%29_3_%2848162891866%29.jpg/693px-Nephrite_jade_%28fluvial_clast_from_the_Susitna_River_near_Talkeetna%2C_Alaska%2C_USA%29_3_%2848162891866%29.jpg?20191130165414)
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[edit]DescriptionNephrite jade (fluvial clast from the Susitna River near Talkeetna, Alaska, USA) 3 (48162891866).jpg |
(~4.5 centimeters across at its widest) Nephrite jade (nephritite) is a greenish to blackish colored, crystalline-textured to felted-textured metamorphic rock. It is principally composed of one or more amphibole minerals (tremolite to actinolite, Ca2Mg5Si8O22(OH)2 to Ca2(Mg,Fe)5Si8O22(OH)2). Some famous localities for nephrite jade in North America include Wyoming, California, British Columbia, and Alaska. The rock seen here is Alaskan nephrite jade. It has been eroded from glacial drift deposits in the Alaska Range and transported downstream in modern rivers. Locality: fluvial gravel clast, Susitna River, unrecorded/undisclosed site at or near the town of Talkeetna, south of the Alaska Range, southern Alaska, USA |
Date | |
Source | Nephrite jade (fluvial clast from the Susitna River near Talkeetna, Alaska, USA) 3 |
Author | James St. John |
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/48162891866 (archive). It was reviewed on 30 November 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
30 November 2019
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current | 16:54, 30 November 2019 | ![]() | 2,472 × 2,138 (3.16 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot D10 |
Exposure time | 1/250 sec (0.004) |
F-number | f/11 |
ISO speed rating | 80 |
Date and time of data generation | 12:03, 30 June 2019 |
Lens focal length | 11.614 mm |
Width | 4,000 px |
Height | 3,000 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop Elements 16.0 (Macintosh) |
File change date and time | 15:07, 30 June 2019 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 12:03, 30 June 2019 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 7.96875 |
APEX aperture | 6.90625 |
APEX exposure bias | −0.33333333333333 |
Maximum land aperture | 4 APEX (f/4) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,460.905349794 |
Focal plane Y resolution | 16,483.516483516 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Portrait |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 11:07, 30 June 2019 |
Unique ID of original document | 3A5807025BDC8E4F5624C17B74B733DE |