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TitleApplication of LA-ICP-MS trace-element analysis for precious metal deportment: A case study of the Kevitsa mine, Finland
AuthorCabri, L J; Kelvin, M; Yang, Z; Jackson, S E; Altun, O
SourceEuropean Journal of Mineralogy vol. 29, 4, 2017 p. 635-644,
Alt SeriesNatural Resources Canada, Contribution Series 20182350
Mediapaper; on-line; digital
File formatpdf
Released2017 09 01
AbstractThe Kevitsa mine, located in northern Finland, contains disseminated Ni-Cu-Fe sulphides and platinum-group minerals. Earlier studies had reported trace concentrations of platinum-group elements in several minerals using the electron microprobe. Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), which has much lower limits of detection, was used in the present study to target potential carrier minerals (sulphide, sulpharsenide, and arsenide) as part of a process mineralogy study of the ore, with the data used to determine the deportment of the precious metals. Trace precious-metal data were obtained on pentlandite, pyrite, gersdorffite, maucherite, and nickeline for Rh, Pd, Os, Ir, Pt, and Au. A unique feature of the data was the new discovery that nickeline is a significant carrier of Au (up to 74.1 ppm), in addition to Rh, Pd, Os, Ir, and Pt. The unexpected concentration of gold in nickeline demonstrates the versatility of LA-ICP-MS analysis when using an appropriate calibration standard and established protocols. © 2017 E. SchweizerbartÕsche Verlagsbuchhandlung.

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