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Irradiative coloration of quartz and feldspars with application to preparing high-purity mineral separates

Rose, Timothy P. and Criss, Robert E. and Rossman, George R. (1994) Irradiative coloration of quartz and feldspars with application to preparing high-purity mineral separates. Chemical Geology, 114 (1-2). pp. 185-189. ISSN 0009-2541. https://resolver.caltech.edu/CaltechAUTHORS:20130502-072650370

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Abstract

Visible discrimination of quartz and feldspars can be greatly facilitated by the irradiative coloration of mineral concentrates using γ-radiation from a ^(137)Cs source. Irradiated quartz samples typically become smoky colored. Sanidine phenocrysts generally acquire a yellow color while plagioclase and plutonic K-feldspars respond weakly or negligibly to irradiation. Manual separation of 0.25–3.0-mm mineral grains that were initially identical in appearance was readily accomplished following radiation treatment. Available data indicate that this process does not modify the chemical or isotopic composition of the sample.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/0009-2541(94)90051-5DOIUNSPECIFIED
http://www.sciencedirect.com/science/article/pii/0009254194900515PublisherUNSPECIFIED
ORCID:
AuthorORCID
Rossman, George R.0000-0002-4571-6884
Additional Information:© 1994 Elsevier Science B.V. Received June 2, 1993; revision accepted November 3, 1993. We thank A.M. Hofmeister for valuable discussion. This research was supported in part by NSF grants EAR-9204981 (R.E.C.) and EAR-891604 (G.R.R.) and by grants from the Geological Society of America and Sigma Xi (T.P.R.).
Funders:
Funding AgencyGrant Number
NSFEAR-9204981
NSFEAR-891604
Geological Society of AmericaUNSPECIFIED
Sigma XiUNSPECIFIED
Issue or Number:1-2
Record Number:CaltechAUTHORS:20130502-072650370
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130502-072650370
Official Citation:Timothy P. Rose, Robert E. Criss, George R. Rossman, Irradiative coloration of quartz and feldspars with application to preparing high-purity mineral separates, Chemical Geology, Volume 114, Issues 1–2, 5 May 1994, Pages 185-189, ISSN 0009-2541, 10.1016/0009-2541(94)90051-5. (http://www.sciencedirect.com/science/article/pii/0009254194900515)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:38221
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:02 May 2013 14:52
Last Modified:03 Oct 2019 04:55

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