File:Nephrite jade (Precambrian) (Granite Mountains, Fremont County, Wyoming, USA) 3 (49703436701).jpg
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Summary
editDescriptionNephrite jade (Precambrian) (Granite Mountains, Fremont County, Wyoming, USA) 3 (49703436701).jpg |
Nephrite jade from the Precambrian of Wyoming, USA. (cut & polished surface; ~6.6 centimeters across at its widest) Nephrite jade (nephritite) is a crystalline-textured to felted-textured metamorphic rock principally composed of one or more amphibole minerals (tremolite to actinolite, Ca2Mg5Si8O22(OH)2 to Ca2(Mg,Fe)5Si8O22(OH)2). Nephrite jade was discovered in Wyoming in the 1930s, resulting in a "jade rush" that lasted for several decades. Most recovered material is alluvial jade, produced by paleoerosion of jade outcrops. Eroded clasts of jade were transported downstream and subsequently buried with other poorly-sorted sediments. Some Wyoming jade has been collected from in-situ outcrops. This sample is "lode jade" and comes from a "vein" in granite. Age: Precambrian (probably Proterozoic) Locality: undisclosed site in the Granite Mountains, Fremont County, Wyoming, USA |
Date | |
Source | Nephrite jade (Precambrian) (Granite Mountains, Fremont County, Wyoming, 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@N05/49703436701. It was reviewed on 14 April 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
14 April 2020
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current | 18:11, 14 April 2020 | 2,526 × 2,243 (3.7 MB) | Poldavia (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 | 1/60 sec (0.016666666666667) |
F-number | f/10 |
ISO speed rating | 80 |
Date and time of data generation | 00:32, 27 March 2020 |
Lens focal length | 9.681 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 | 02:49, 27 March 2020 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 00:32, 27 March 2020 |
Meaning of each component |
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Image compression mode | 3 |
APEX shutter speed | 5.90625 |
APEX aperture | 6.65625 |
APEX exposure bias | −0.66666666666667 |
Maximum land aperture | 3.625 APEX (f/3.51) |
Metering mode | Pattern |
Flash | Flash fired, compulsory flash firing, red-eye reduction mode |
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 | Standard |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 22:49, 26 March 2020 |
Unique ID of original document | AA3283888A24AFCDD5C60D428CAF6CB9 |