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Green orthoclase feldspar from Vietnam

Rossman, George R. and Shigley, James E. (2005) Green orthoclase feldspar from Vietnam. Gems and Gemology, 41 (4). pp. 354-355. ISSN 0016-626X. https://resolver.caltech.edu/CaltechAUTHORS:20130429-151901424

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Abstract

In July 2005, these contributors received some interesting transparent "emerald" green samples that were reported to be amazonite from a new find in Vietnam. Five faceted stones were loaned and several pieces of rough were donated to GIA by Bill Larson (Pala International, Fallbrook, California). According to his supplier, Son T. Ta (I.T.C. International Trade Center, Ho Chi Minh City, Vietnam), they were mined from a pegmatite near Minh Tien, about 15 km south of Luc Yen in Yen Bai Province. This area is also known to produce transparent green fluorite, which when cobbed is similar in appearance to gem-quality orthoclase.


Item Type:Article
ORCID:
AuthorORCID
Rossman, George R.0000-0002-4571-6884
Alternate Title:Colored stones and organic materials - Green orthoclase feldspar from Vietnam
Additional Information:© 2005 Gemological Institute of America.
Issue or Number:4
Record Number:CaltechAUTHORS:20130429-151901424
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130429-151901424
Official Citation:Rossman, George R.; Shigley, James E. (2005) Gem news international: Green orthoclase feldspar from Vietnam. Gems & Gemology, v. 41, n. 4, pp. 354-355.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:38168
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:06 May 2013 18:32
Last Modified:03 Oct 2019 04:54

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