... compositional core-to-margin zoning of internal structures. Although there is a wide variation in internal morphology and individual zones vary markedly in thickness (<1–100 μm), a typical composite arborescent nugget comprises a broad irregular core region of massive auriferous Pd–Hg alloy (potarite; δ-PdHg...

...S. Arai; H. M. Prichard; I. Matsumoto; P. C. Fisher Abstract Pd-rich PGM (platinum-group minerals) have been found in sulphide-bearing dunites and harzburgites from the Inazumi-yama ultramafic complex in southwestern Japan. In the dunite, potarite (PdHg (sub 0.85-0.88) ) is the most abundant PGM...

...K. Terada; F. WM. Cagle Abstract Potarite is a palladium amalgam which occurs in the Potaro river region of British Guiana (Palache, Berman, and Frondel 1944). It was first described by Harrison and Bourne (1924-5) and more fully characterized by Spencer (1928). Spencer further surveyed the known...

... (HgSe), potarite (PdHg), and with the phase Pd 2 HgSe 3 . In turn, Pd 2 HgSe 3 forms stable assemblages with PdSe 2 (orthorhombic), palladseite (Pd 17 Se 15 ), tischendorfite (Pd 8 Hg 3 Se 9 ), and tiemannite (HgSe). The phase Pd 5 HgSe, stable near the Pd-rich corner of the system, forms stable...

...Alexandre Raphael Cabral; Anna Vymazalová; Bernd Lehmann; Miguel Tupinambá; Jakub Haloda; František Laufek; Vojtěch Vlček; Rogerio Kwitko-Ribeiro Abstract Potarite, ideally PdHg, is reported in the literature to have compositions varying from PdHg or Pd(Hg,Au) to Pd 3 Hg 2 . Such a Pd 3 Hg 2...

... includes potarite, prassoite, rhodian pentlandite, Cu–Pd alloys, native osmium, Ir–Fe alloys and oxides. These data strongly suggest that Ural–Alaskan-type chromitites are major contributors of Pt alloys that are encountered associated with nuggets in placer deposits of the Ural Platinum-bearing Belt...

... includes potarite, prassoite, rhodian pentlandite, Cu–Pd alloys, native osmium, Ir–Fe alloys and oxides. These data strongly suggest that Ural–Alaskan-type chromitites are major contributors of Pt alloys that are encountered associated with nuggets in placer deposits of the Ural Platinum-bearing Belt...

... gold, native silver and potarite. Oxidation of the Pd and Pt selenides has produced a range of fine-grained oxide mixtures. The Pd and Pt selenides and their oxidized products occur as fine-grained dispersions, commonly as arborescent fronds, and as larger inclusions in the malachite nodules...

..., analyzed with X-ray energy dispersive spectrometry on areas devoid of discrete particles down to a 40 Aa limit, contains 2.74 wt percent Pd + Pt + Au (Pd = 1.85%) and 5.83 wt percent Hg. It is associated with particulate potarite (Pd, Au, Pt) Hg, native gold, plumbojarosite, hydronium jarosite...