File:Wulfenite (Sonora, Mexico) 1 (17358442121).jpg
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Summary
[edit]DescriptionWulfenite (Sonora, Mexico) 1 (17358442121).jpg |
Wulfenite crystals from Sonora, Mexico. (Cranbrook Institute of Science specimen, Bloomfield Hills, Michigan, USA) A mineral is a naturally-occurring, solid, inorganic, crystalline substrance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 4900 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates. Minor categories include vanadates, molybdates, chromates, arsenates, borates, tungstates, and oxalates. Wulfenite is an attractive molybdate mineral having a shiny nonmetallic luster, an orangish color, and distinctive rectangular tabular crystals. Wulfenite is lead molybdate (PbMoO4). The lead content makes it noticeably heavy for its size. |
Date | |
Source | Wulfenite (Sonora, Mexico) 1 |
Author | James St. John |
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This image was originally posted to Flickr by jsj1771 at https://www.flickr.com/photos/47445767@N05/17358442121. It was reviewed on 6 May 2015 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
6 May 2015
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current | 19:15, 6 May 2015 | 2,399 × 2,745 (3.85 MB) | Natuur12 (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 | 1/15 sec (0.066666666666667) |
F-number | f/4.9 |
ISO speed rating | 80 |
Date and time of data generation | 10:16, 2 May 2015 |
Lens focal length | 18.6 mm |
Image title | |
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 13.0 (Macintosh) |
File change date and time | 16:32, 3 May 2015 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 10:16, 2 May 2015 |
Meaning of each component |
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APEX shutter speed | 3.90625 |
APEX aperture | 4.59375 |
APEX exposure bias | −0.33333333333333 |
Maximum land aperture | 4.59375 APEX (f/4.91) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
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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 | 12:32, 3 May 2015 |
Unique ID of original document | 7D72EC323CDAA48D1CD4C8E91033DD42 |