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Journal of Petrology Advance Access originally published online on January 30, 2008
Journal of Petrology 2008 49(3):581-583; doi:10.1093/petrology/egn003
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© The Author 2008. Published by Oxford University Press. All rights reserved. For Permissions, please e-mail: journals.permissions@oxfordjournals.org.

Codification of Unnamed Minerals

Dorian G. W. Smith1,* and Ernest H. Nickel2

1Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada, T6G 2E3
2Division of Exploration and Mining, CSIRO, Po Box 5, Wembley, W.A. 6913, Australia

RECEIVED DECEMBER 17, 2007; ACCEPTED JANUARY 7, 2008


  Abstract

The Subcommittee for Unnamed Minerals of the IMA Commission on New Minerals, Nomenclature and Classification (CNMNC, formerly CNMMN) has developed a codification system that includes the year of publication and qualitative chemical composition for unnamed minerals reported in the literature. Such minerals are divided into two categories. Those regarded as being ‘valid as unnamed minerals’ are those that do not correspond to existing species, have not been reported previously, and whose published descriptions allow them to be recognized if found elsewhere. Unnamed minerals regarded as being ‘invalid as unnamed minerals’ are those whose published descriptions are inadequate for their confident recognition if found elsewhere, or that correspond to existing mineral species or unnamed minerals published previously.

*Corresponding author. E-mail: Dorian.Smith{at}ualberta.ca


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