File:Holey stones.jpg
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Size of this preview: 444 × 599 pixels. Other resolutions: 178 × 240 pixels | 355 × 480 pixels | 569 × 768 pixels | 759 × 1,024 pixels | 1,707 × 2,304 pixels.
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Summary
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| Description |
English: Known as hag stones , holey stones or witch stones.
When minerals within rocks experience mechanical stress, the weak bonds holding the dimers together are broken, creating a charge imbalance that gives rise to mobile positive holes. These holes travel through stressed mineral grains to other nearby minerals—like current passing through a p-doped semiconductor—until they eventually arrive at the rock's surface |
| Date | |
| Source | Own work |
| Author | Dulmini Balasooriya |
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I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
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- to remix – to adapt the work
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- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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This image was uploaded as part of Wiki Loves Earth 2020.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:15, 14 May 2020 | | 1,707 × 2,304 (1.41 MB) | Dulmini Balasooriya (talk | contribs) | Uploaded own work with UploadWizard |
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