1994 REPORT ON ZINNWALDITE ZW‐C ANALYSED BY NINETY‐TWO GIT‐IWG MEMBER‐LABORATORIES
- 1 April 1994
- journal article
- Published by Wiley in Geostandards Newsletter
- Vol. 18 (1) , 1-42
- https://doi.org/10.1111/j.1751-908x.1994.tb00502.x
Abstract
Within a short period of one year (November 1992‐ October 1993), ninety‐two IWG‐Member laboratories have been able to characterize the chemical composition of a candidate reference sample, Zinnwaldite ZW‐C, a Li‐mica, reputed difficult to analyse because of its high contents of F and rare alkali elements and of the presence of refractory minerals. Thanks to the help of 163 analysts from the 92 laboratories, it has been possible to assign working values for 20 major and minor elements including the rare alkali elements and for 43 trace elements; all the working values receive the status of recommended values, except H20, C02, LOI, CI and S. It is, indeed, a rare success for such a difficult sample!This publication has 5 references indexed in Scilit:
- SECOND REPORT (1993) ON THE FIRST THREE GIT‐IWG ROCK REFERENCE SAMPLES: ANORTHOSITE FROM GREENLAND, AN‐G; BASALTE D'ESSEY‐LA‐CÔTE, BE‐N; GRANITE DE BEAUVOIR, MA‐NGeostandards Newsletter, 1993
- TERMINOLOGY FOR GEOLOGICAL REFERENCE MATERIAL VALUES: A PROPOSAL TO THE INTERNATIONAL ORGANISATION FOR STANDARDISATION (ISO), PRODUCERS AND USERSGeostandards and Geoanalytical Research, 1992
- PREPARATION, HOMOGENEITY EVALUATION AND COOPERATIVE STUDY OF TWO NEW CHROMITITE REFERENCE SAMPLES CHR-PT+ AND CHR-BKGGeostandards and Geoanalytical Research, 1992
- Compilation Report (1966–1987) on Trace Elements in five CRPG Geochemical Reference Samples: Basalt BR; Granites, GA and GH; Micas, Biotite Mica‐Fe and Phlogopite Mica‐MgGeostandards Newsletter, 1988
- Report (1980) on Three GIT‐IWG Rock Reference Samples: Anorthosite from Greenland, AN‐G; Basalte d'Essey‐la‐Côte, BE‐N; Granite de Beauvoir, MA‐NGeostandards Newsletter, 1980