Image: Scoria AmsterdamIsland 2 edit
Size of this preview: 651 × 600 pixels. Other resolutions: 261 × 240 pixels | 2,114 × 1,947 pixels.
Original image (2,114 × 1,947 pixels, file size: 1.11 MB, MIME type: image/jpeg)
Description: Basaltic scoria (about 8 cm large) coming from Amsterdam island ; blue iridescent color could be caused by interferences phenomenon in a thin and smooth layer of hematit (Fe2O3)
Author: B.navez
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC-BY-SA-3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0/
Attribution Required?: Yes
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