File:Thin section scan crossed polarizers Siilinjärvi R636-42.60.jpg
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Summary
[edit]DescriptionThin section scan crossed polarizers Siilinjärvi R636-42.60.jpg |
English: Scanned image of thin section from Siilinjärvi apatite ore in cross polarised transmitted light.
The thin section is highly sheared and has a fine grain size. Mineral crystals have broken into small fragments, and almost only remaining structures are carbonate aggregates. Tetraferriphlogopite covers half of the thin section area and is mostly present as tiny elongated and oriented laths. The laths are usually 0.1-0.5 mm long but some bigger flakes are remaining with diameters up to 2 mm. Carbonates are present as granular mineral aggregates but also as fine-grained mash with apatite. Calcite is the dominating carbonate mineral. The grain diameter in the aggregates is 0.2-1 mm and the grains are quite well-preserved. Outside the aggregates the grains are much smaller and in companion with apatite; these grains are commonly dolomites. Carbonates form 30 area-% of the thin section. Apatite is mostly found as scattered small fragments. Apatite covers 15 area-% of the thin section, and is often in companion with carbonates. Fragments are mostly < 0.5 mm in diameter, but some still remaining larger grains can be up to 2 mm in diameter. Usually the fragments are 0.05-0.2 mm in diameter. Richterite amphiboles and opaques are featured as accessory minerals. Richterite grains are often seen as small elongated slivers or euhedral lozenges in the mica flow areas. Euhedral crystals are < 0.3 mm in diameter, elongated grains can be slightly larger. Opaques are probably mostly magnetite. |
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Source | Own work |
Author | kallerna |
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current | 19:05, 12 November 2019 | 4,155 × 2,400 (4.23 MB) | Kallerna (talk | contribs) | User created page with UploadWizard |
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File usage on Commons
The following 22 pages use this file:
- User talk:Kallerna/2015-2019
- Commons:Quality images/Subject/Microscopic
- Commons:Quality images candidates/Archives November 17 2019
- 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
- File:Thin section scan crossed polarizers Siilinjärvi R616-78.20.jpg
- File:Thin section scan crossed polarizers Siilinjärvi R625-110.80.jpg
- 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
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 | 20:31, 20 September 2016 |
Width | 9,694 px |
Height | 5,600 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 | 20:49, 12 November 2019 |
Exif version | 2.21 |
Date and time of digitizing | 20:31, 20 September 2016 |
DateTimeOriginal subseconds | 33 |
DateTimeDigitized subseconds | 33 |
Color space | Uncalibrated |
Date metadata was last modified | 22:49, 12 November 2019 |
Unique ID of original document | EE28B9F452AFBF36D9D9B836B11E0317 |