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Published August 1, 2011 | Version public
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A study of andesine matrix specimens purported to be from Tibet

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Abstract

During the investigation of red andesine from Tibet, several samples of what appeared to be andesine in matrix were provided. This article documents the examination of these specimens with the goal of proving or disproving their authenticity. Microscopic examination, Raman, LA-ICP-MS and ATR were used and the results are presented. The findings strongly suggest these specimens are manufactured.

Additional Information

© 2011 Gemological Institute of America Inc. This report accompanies the following article: Abduriyim A., McClure S.F., Rossman G.R., Leelawatanasuk T., Hughes R.W., Laurs B.M., Lu R., Isatelle F., Scarratt K., Dubinsky E.V., Douthit T.R., Emmett J.L. (2011) Research on gem feldspar from the Shigatse region of Tibet, Gems & Gemology, Vol. 47, No. 2, pp. 167–180.

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Eprint ID
39412
Resolver ID
CaltechAUTHORS:20130717-095330693

Dates

Created
2013-08-19
Created from EPrint's datestamp field
Updated
2019-10-03
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Caltech groups
Division of Geological and Planetary Sciences (GPS)