File:Thin section scan crossed polarizers Siilinjärvi R301-61.70.jpg
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Summary[edit]
DescriptionThin section scan crossed polarizers Siilinjärvi R301-61.70.jpg |
English: Scanned image of thin section from Siilinjärvi apatite ore in cross polarised transmitted light.
The thin section presents apatite-rich carbonate ore. The grain size is quite big and the thin section consist mostly of big apatite grains in granular carbonate mass. The sample is not oriented. The grains are mostly anhedral. Carbonates form the groundmass in the sample and 55 % of the thin section area. Calcite is more common carbonate mineral than dolomite. Carbonates form mineral aggregates with granoblastic texture, and the grain size varies in the sample. Dolomite grains are commonly smaller than calcite grains. The biggest grains are 3 mm in diameter. The grains in the aggregates are less than 1 mm in diameter, and regionally the grains in the aggregates can be less than 0.2 mm in diameter. Apatite is present as large porphyroclasts that form 30 area-% of the thin section. Rouded grains are commonly slightly elongated, and have some carbonate inclusions which are oriented along the fractures planes. Grain diameter varies normally between 1 and 4 mm. Tetraferriphlogopite forms 15 area-% of the thin section. Grains are usually large, but some broken pieces are also present. The biggest flake is 8 mm long and 2 mm wide, while the average grain is about 2 mm long and 1 mm wide. |
Date | |
Source | Own work |
Author | kallerna |
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Annotations InfoField | This image is annotated: View the annotations at Commons |
This image has been assessed using the Quality image guidelines and is considered a Quality image.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 14:59, 13 November 2019 | 3,990 × 2,300 (2.56 MB) | Kallerna (talk | contribs) | edit | |
19:05, 12 November 2019 | 3,990 × 2,300 (2.44 MB) | Kallerna (talk | contribs) | User created page with UploadWizard |
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File usage on Commons
The following 24 pages use this file:
- User talk:Kallerna/2015-2019
- Commons:Quality images/Subject/Microscopic
- Commons:Quality images candidates/Archives November 17 2019
- File:Sample Siilinjärvi R301 (61.70).jpg
- File:Thin section microscopy Siilinjärvi R301 6170 apatite.jpg
- File:Thin section scan crossed polarizers Siilinjärvi 501-M3.jpg
- File:Thin section scan crossed polarizers Siilinjärvi H10.jpg
- File:Thin section scan crossed polarizers Siilinjärvi H16.jpg
- File:Thin section scan crossed polarizers Siilinjärvi H2.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R276-108.40.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R301-61.70.jpg
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- File:Thin section scan crossed polarizers Siilinjärvi R625-122.05.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R625-145.40.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R625-153.25.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R625-47.40.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R636-105.90.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R636-116.75.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R636-120.45.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R636-131.20.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R636-136.45.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R636-42.60.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R636-63.35.jpg
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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.
Author | Kalle Rahkola |
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Date and time of data generation | 21:39, 20 September 2016 |
Width | 9,417 px |
Height | 5,428 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 6,400 dpi |
Vertical resolution | 6,400 dpi |
Software used | Adobe Photoshop CS6 (Macintosh) |
File change date and time | 16:52, 13 November 2019 |
Exif version | 2.21 |
Date and time of digitizing | 21:39, 20 September 2016 |
DateTimeOriginal subseconds | 94 |
DateTimeDigitized subseconds | 94 |
Color space | Uncalibrated |
Date metadata was last modified | 18:52, 13 November 2019 |
Unique ID of original document | DB2481E73CA4D999D45F0C0980C039A9 |