File:Verneuil torch sketch.png

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An early sketch of a Verneuil torch, used by Verneuil for the production of rubies using the Verneuil process. Taken from "Synthesis of Precious Stones" by I.H. Levin, first published in May 24, 1912. Available online at [1].

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Date/TimeThumbnailDimensionsUserComment
current23:19, 16 February 2006Thumbnail for version as of 23:19, 16 February 20061,368 × 1,959 (141 KB)Aramgutang~commonswiki (talk | contribs)An early sketch of a Verneuil torch, used by Verneuil for the production of rubies using the Verneuil process. Taken from "Synthesis of Precious Stones" by I.H. Levin, first published in May 24, 1912. Available online at

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