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Rutheniridosmine

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Journal Article
Published: 01 August 1974
The Canadian Mineralogist (1974) 12 (6): 426.
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Variation in compositions of Os-Ru-Ir alloy minerals (W-free) and W-bearing...
Published: 01 October 2008
F igure 2. Variation in compositions of Os-Ru-Ir alloy minerals (W-free) and W-bearing rutheniridosmine from the old collection, California, in Os-Ru-Ir compositional space (atom proportions based on results of 351 EMP analyses: this study). The dashed lines show the miscibility gap of Harris
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Fractures in the deformed placer PGM grains from southern Siberia.  a , Iso...
Published: 01 October 2016
Fig. 3. Fractures in the deformed placer PGM grains from southern Siberia. a , Isoferroplatinum (Kaurchak River) displaying a network of curve fractures; b , rectilinear parallel fractures in rutheniridosmine (Kaurchak River); c , thin parallel fractures in rutheniridosmine with rutile
Journal Article
Published: 01 April 2004
The Canadian Mineralogist (2004) 42 (2): 631–650.
... of PGM from Evander is an extensive presence of Ru-rich alloys ( i.e. , Ru–Os–Ir, Ru–Os–Ir–Pt, Ru–Ir–Pt, Ru–Pt), which prevail over osmium, iridium, rutheniridosmine, Pt–Fe, Pt–Ru–Fe and Pt–Ir–Os alloys and other PGM. The 187 Os/ 188 Os value, measured by N–TIMS in PGM that contain Os in the range 18–53...
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Compositional fields (at.%) for ruthenium (Ru), osmium (Os), iridium (Ir), ...
Published: 13 September 2021
Fig. 7. Compositional fields (at.%) for ruthenium (Ru), osmium (Os), iridium (Ir), platinum (Pt), and rutheniridosmine. The grey area is the field of immiscibility as defined by Cabri et al . (1996) . All the data points are inclusions in various PGE alloys, except for ruthenium ( Fig. 6 E
Journal Article
Published: 01 October 2008
American Mineralogist (2008) 93 (10): 1574–1580.
...F igure 2. Variation in compositions of Os-Ru-Ir alloy minerals (W-free) and W-bearing rutheniridosmine from the old collection, California, in Os-Ru-Ir compositional space (atom proportions based on results of 351 EMP analyses: this study). The dashed lines show the miscibility gap of Harris...
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Journal Article
Published: 01 October 2005
The Canadian Mineralogist (2005) 43 (5): 1687–1710.
...–tetraferroplatinum solid-solution series extending from Pt 2 Fe(Cu,Ni) toward PGE 1+ x (Fe,Cu,Ni) 1− x , less common Ir-dominant Ir–Os–(Ru–Pt) alloys, subordinate Os-dominant alloys, and minor Ru-rich alloys and rutheniridosmine, the latter with an atomic Ir:Os:Ru proportion close to 1:1:1. Trace amounts of PGE...
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Compositions of Ir- and Os-dominant alloys from the placer deposits examine...
Published: 01 October 2005
compositionally to rutheniridosmine, and compositions of the other two grains are plotted close to the border of the compositional field of rutheniridosmine (RUIROS).
Journal Article
Published: 01 April 2004
Mineralogical Magazine (2004) 68 (2): 369–394.
...J. Jedwab Abstract A reappraisal of Hermann’s ‘irite’, described in 1836 and 1841, has been attempted by examining and analysing three museum samples, accessioned before 1865. The three samples were determined to be mixtures of chromite, native Os and Ir, rutheniridosmine, platinum, laurite...
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Journal Article
Journal: Economic Geology
Published: 01 April 1981
Economic Geology (1981) 76 (2): 498–504.
...R. J. Ford Abstract Platinum-group minerals in Tasmania occur mostly in placer deposits and are composed mainly of iridosmine and rutheniridosmine. Platinum-rich alloys are rare. Silicate inclusions in the metals include olivine (Fo (sub 94-89) ), enstatite, and nonstoichiometric pyroxene rich...
Journal Article
Journal: Economic Geology
Published: 01 November 1976
Economic Geology (1976) 71 (7): 1399–1428.
...C. E. Feather Abstract Approximately 80 percent of the platinum-group mineral grains in the Precambrian Witwatersrand conglomerate reefs are (Ir, Os, Ru) alloys. Osmium, iridosmine, osmiridium, and iridium are most abundant; rutheniridosmine, ruthenosmiridium, and ruthenian iridium are less...
Journal Article
Published: 01 August 1973
The Canadian Mineralogist (1973) 12 (2): 104–112.
...Donald C. Harris; Louis J. Cabri Abstract Osmiridium and iridosmine for binary alloys, rutheniridosmine and ruthenosmiridium for ternary alloys; Papua, New Guinea, Colombia, Canada © 1973 Mineralogical Association of Canada 1973 ...
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Composition of Ru–Os–Ir, Pt–Os–Ir and Ru–Pt–Ir alloys from the Evander Gold...
Published: 01 April 2004
F ig . 5. Composition of Ru–Os–Ir, Pt–Os–Ir and Ru–Pt–Ir alloys from the Evander Goldfield in terms of the diagrams (at.%) Ru–Os–Ir (A), Pt–Os–Ir (B) and Pt–Ru–Ir (C), respectively. RIO: rutheniridosmine, fields I, II and III denote a miscibility gap. Numbers 1–10, 12 and 13 correspond
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Altered primary minerals. ( a ) ENSM-6774. Fibrous slab of alteration Ir-Ru...
Published: 01 April 2004
F ig . 4. Altered primary minerals. ( a ) ENSM-6774. Fibrous slab of alteration Ir-Ru-Pt-Os oxide (dark grey, bronze colour under reflected light; Table 1 , col. 4) still containing residual rutheniridosmine (white; Table 1 , col. 3). Pol. sect. SEM(BS). 160 μm. ( b ) NHML. Particle of Ir-osmium
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SEM images of chromian spinel (Chr) hosted solid inclusions. (a) Single aut...
Published: 01 June 2012
Fig. 5 SEM images of chromian spinel (Chr) hosted solid inclusions. (a) Single automorph laurite (Lrt). (b) Automorph laurite associated with a serpentine (Srp). (c) Automorph erlichmanite (Erl). (d) Single automorph zoned laurite. X-ray scanned lines 1: Ru, 2: Os, and 3: S. (e) Rutheniridosmine
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Composition of detrital Ru–Os–Ir alloys at Evander in terms of the diagram ...
Published: 01 April 2004
F ig . 6. Composition of detrital Ru–Os–Ir alloys at Evander in terms of the diagram Ru –Os – Ir, at.%. Fields I and II: rutheniridosmine and miscibility gap, respectively. IPGE alloy grains measured by N–TIMS and LA MC–ICP–MS (A, this study) and by N–TIMS (B, Malitch et al . 2000 ). IPGE
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The quaternary system Ru-Os-Ir-Pt depicting the composition of platinum-gro...
Published: 01 August 2008
FIGURE 8 The quaternary system Ru-Os-Ir-Pt depicting the composition of platinum-group element alloys from world-wide placer deposits (after Cabri et al. 1996 ). The minerals in this system are either hexagonal (osmium, ruthenium, rutheniridosmine) or cubic (platinum, iridium). The majority
Journal Article
Published: 01 April 2014
American Mineralogist (2014) 99 (4): 654–666.
... al. 2012 ; this study). The third grain is sufficiently Ir-enriched to be an iridium, if it is cubic, or, despite the very low Ru content, a rutheniridosmine if it is hexagonal. The osmiums in ACM-1 are the most Os- and W-rich meteoritic alloys that we are aware of, aside from grains...
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Journal Article
Published: 01 October 2016
Russ. Geol. Geophys. (2016) 57 (10): 1437–1464.
...Fig. 3. Fractures in the deformed placer PGM grains from southern Siberia. a , Isoferroplatinum (Kaurchak River) displaying a network of curve fractures; b , rectilinear parallel fractures in rutheniridosmine (Kaurchak River); c , thin parallel fractures in rutheniridosmine with rutile...
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Journal Article
Published: 01 January 2006
American Mineralogist (2006) 91 (1): 191–195.
... ), corresponding to rutheniridosmine (cf., Harris and Cabri 1991 ), are observed in the W-rich alloy grain. Relatively large grains of native Ir (up to 2 mm) of mean composition (Ir 0.82 Os 0.05 Ru 0.04 Fe 0.04 Pt 0.03 Rh <0.01 Ni <0.01 ; n = 10) also are present in the old vial. All of the PGE alloy...
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