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File:PSM V20 D677 Fulgurite tubes created by vitrification of sand by lighting.jpg

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Description Fulgurite tubes created by vitrification of sand by lighting
Date between 1881 and 1882
date QS:P,+1881-00-00T00:00:00Z/8,P1319,+1881-00-00T00:00:00Z/9,P1326,+1882-00-00T00:00:00Z/9
Source Popular Science Monthly Volume 20
Author Unknown authorUnknown author
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Date/TimeThumbnailDimensionsUserComment
current05:55, 24 April 2015Thumbnail for version as of 05:55, 24 April 20151,414 × 900 (311 KB)IneuwCleaned image and improved contrast
00:48, 23 August 2010Thumbnail for version as of 00:48, 23 August 20101,375 × 856 (268 KB)Ineuw{{Information |Description = Fulgurite tubes created by vitrification of sand by lighting |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_20.djvu/677 |Date = 1881-1882 |Author = Unknown |Permission = {{PD-old}} |other_ver

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