File:Nephrite jade (Precambrian; Rawlins area, Wyoming, USA) (24670081006).jpg
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DescriptionNephrite jade (Precambrian; Rawlins area, Wyoming, USA) (24670081006).jpg |
Nephrite jade with weathering rind from the Precambrian of Wyoming, USA. (DMNH 8583, Denver Museum of Nature & Science, Denver, Colorado, USA) 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. Age: Precambrian (probably Proterozoic) Locality: unrecorded locality at or near Rawlins, central Wyoming, USA |
Date | |
Source | Nephrite jade (Precambrian; Rawlins area, Wyoming, USA) |
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@N05/24670081006 (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 | 16:50, 30 November 2019 | 2,429 × 1,956 (2.9 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Metadata
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Camera manufacturer | OLYMPUS IMAGING CORP. |
Camera model | TG-1 |
Exposure time | 1/100 sec (0.01) |
F-number | f/4.9 |
ISO speed rating | 200 |
Date and time of data generation | 14:21, 26 October 2013 |
Lens focal length | 18 mm |
Orientation | Normal |
Horizontal resolution | 314 dpi |
Vertical resolution | 314 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 17:45, 29 January 2016 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 14:21, 26 October 2013 |
Meaning of each component |
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APEX exposure bias | 0 |
Maximum land aperture | 2 APEX (f/2) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired, auto mode |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 100 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Receiver status | Measurement interoperability |
Reference for direction of image | Magnetic direction |
Direction of image | 228 |
GPS tag version | 0.0.3.2 |
Supported Flashpix version | 1 |
Image width | 2,429 px |
Image height | 1,956 px |
Date metadata was last modified | 12:45, 29 January 2016 |
IIM version | 2 |