File:Alum shale in Sweden.png
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![File:Alum shale in Sweden.png](https://upload.wikimedia.org/wikipedia/commons/thumb/4/46/Alum_shale_in_Sweden.png/439px-Alum_shale_in_Sweden.png?20140418113642)
Size of this preview: 439 × 599 pixels. Other resolutions: 176 × 240 pixels | 351 × 480 pixels | 819 × 1,118 pixels.
Original file (819 × 1,118 pixels, file size: 83 KB, MIME type: image/png)