File:Curved Striations in Synthetic Color-Change Sapphire.jpg
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Curved Striations in Synthetic Color-Change Sapphire.jpg
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Original file (7,360 × 4,912 pixels, file size: 39.8 MB, MIME type: image/jpeg)
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Summary
| DescriptionCurved Striations in Synthetic Color-Change Sapphire.jpg |
English: The curvature observed in this synthetic color-change Sapphire is due to a process known as the Verneuil Process or, flame fusion. During this process, a fine crushed material is heated at extremely high temperatures. The crushed material is then melted which drips through a furnace onto a boule. This boule where the Corundum cools down and crystallizes, spins and thus causes the curved striations. Natural Corundum does not form this way and helps gemologists separate natural Corundum from synthetic Corundum. |
| Date | |
| Source | Own work |
| Author | LucasFassari |
Licensing
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18 January 2017
image/jpeg
29a87eee53ed153ed0a521abcea370535c43c2b3
41,736,272 byte
4,912 pixel
7,360 pixel
0.125 second
160
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:18, 18 January 2017 | 7,360 × 4,912 (39.8 MB) | wikimediacommons>LucasFassari | User created page with UploadWizard |
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Metadata
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| Camera manufacturer | NIKON CORPORATION |
|---|---|
| Camera model | NIKON D810 |
| Exposure time | 1/8 sec (0.125) |
| F Number | f/0 |
| ISO speed rating | 160 |
| Date and time of data generation | 03:37, 18 February 2014 |
| Lens focal length | 0 mm |
| Width | 7,360 px |
| Height | 4,912 px |
| Bits per component |
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| Pixel composition | RGB |
| Orientation | Normal |
| Number of components | 3 |
| Horizontal resolution | 300 dpi |
| Vertical resolution | 300 dpi |
| Software used | Adobe Photoshop CC 2015.5 (Macintosh) |
| File change date and time | 17:25, 12 January 2017 |
| Y and C positioning | Co-sited |
| Exposure Programme | Manual |
| Exif version | 2.3 |
| Date and time of digitising | 03:37, 18 February 2014 |
| Meaning of each component |
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| Image compression mode | 4 |
| APEX shutter speed | 3 |
| APEX exposure bias | 0 |
| Maximum land aperture | 0 APEX (f/1) |
| Metering mode | Centre weighted average |
| Light source | Unknown |
| Flash | Flash did not fire, compulsory flash suppression |
| DateTime subseconds | 61 |
| DateTimeOriginal subseconds | 61 |
| DateTimeDigitised subseconds | 61 |
| Supported Flashpix version | 1 |
| Colour space | sRGB |
| Sensing method | One-chip colour area sensor |
| File source | Digital still camera |
| Scene type | A directly photographed image |
| Custom image processing | Normal process |
| Exposure mode | Manual exposure |
| White balance | Auto white balance |
| Digital zoom ratio | 1 |
| Focal length in 35 mm film | 0 mm |
| Scene capture type | Standard |
| Scene control | None |
| Contrast | Normal |
| Saturation | Normal |
| Sharpness | Normal |
| Subject distance range | Unknown |
| GPS tag version | 0.0.3.2 |
| Serial number of camera | 3054743 |
| Lens used | 0.0 mm f/0.0 |
| Date metadata was last modified | 09:25, 12 January 2017 |
| Unique ID of original document | BCB56FAC861E90C06BC9EC27B7CEA432 |