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Description

CANMET-GTS-2a is a gold ore mill tailings obtained from a tailings dam at the Porcupine gold mine in Timmins, Ontario, Canada. The mineral species include: quartz (33.5%), clinochlore (14.0%), K-feldspar (13.5%), ankerite (13.5%), muscovite (11.4%), albite (4.3%), calcite (2.1%),siderite (1.7%), biotite (1.2%), rutile and magnetite (both at 0.7%), pyrite and anorthite (both at 0.6%), various other trace minerals including several silicates, rare earths, arsenopyrite, sphalerite, chalcopyrite, melonite, altaite, graphite and gold (for a total of 0.6%), apatite (0.5%), pyrrhotite and Mg-ferrite (0.3%) talc, ilmenite and gypsum (all at 0.1%), and epidote (0.01%). CANMET-GTS-2a is suitable for the analysis of various elements at major, minor and trace levels in tailings. Examples of intended use include quality control and method development. a sets with digestions by two acids, usually hydrochloric and nitric acids, were excluded as method outliers based on statistical tests b fire assay techniques only i.e. sets by digestion excluded as statistical outliers.