| | Journal (article/letter/editorial) | Origin of Platinum-Bearing Placers in the Aluchin Horst, Russian Far East STANISLAV S. GORNOSTAYEV,†...109017, Russia Abstract The Quaternary gold–platinum-group mineral (PGM) placers of the Aluchin horst, western...western Chukotka, Russian Far East, contain PGM (mostly Pt-Fe alloys) typical of those associated with...rocks. They form the primary source of PGM. The PGM placer nuggets vary considerably in size (0.1–9 mm), shape...degree of abrasion, indicating a long history of placer-forming processes. Some of the nuggets are covered | | | Journal (article/letter/editorial) | 1687-1710 (2005) PLATINUM-GROUP MINERALS FROM FIVE PLACER DEPOSITS IN BRITISH COLUMBIA, CANADA ANDREI Y....suite of gold- and platinum-group-element (PGE) placer deposits in British Columbia have been analyzed...analyzed using the electron-microprobe (EMP). The PGM placer grains (n = 70, 0.1–1.5 mm in size) principally...cuproiridsite (Cu,Ni,Fe)(Ir,Rh,Pt)2S4, unusual sperrylite-type [(Pt,Rh,Fe)(As,S)2–x] and platarsite-type...Pt and poor in Fe, observed at the boundary of placer Pt–Fe alloy grains, provide evidence for a removal | | | Journal (issue) | GAINES, R. V. (1970) The M octezuma tellurium deposit. Mineral ogical Record, 1, 40-43. MITCHELL, R...New Species, Twinning, Axinite (Brazil), Green River (WY) $10 v.8/#6 California Issue Benitoite, Gold...Kalahari rhodochrosite, Paterson (NJ), Brumado district (Brazil), Bosch Collection $10 v.9/#4 Elmwood...Los Lamentos (Mex.), Chromates (Iran), Nealite, Sperrylite, Mullica Hill $10 v.ll/#6 Broken Hill (Zambia)...Axinites (CA). El Dragon mine (Bolivia), Silver District (AZ), Goldschmidt $10 v.21/#3 American Amethyst |
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