kuvaevite

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Journal Article

Kuvaevite, Ir 5 Ni 10 S 16 , a New Mineral Species, Its Associations and Genetic Features, from the Sisim River Placer Zone, Eastern Sayans

A.Y. Barkov, N.D. Tolstykh, R.F. Martin, N. Tamura, Chi Ma, A.A. Nikiforov

Journal: Russian Geology and Geophysics

Publisher: Novosibirsk State University

Published: 01 December 2022

Russ. Geol. Geophys. (2022) 63 (12): 1373–1387.

DOI: https://doi.org/10.2113/RGG20224455

...A.Y. Barkov; N.D. Tolstykh; R.F. Martin; N. Tamura; Chi Ma; A.A. Nikiforov Abstract —Kuvaevite, ((Ir,Rh) 5 (Ni,Fe,Cu) 10 S 16 ), forms small grains (up to 20 µm across) in globular inclusions hosted by grains of Os–Ir–(Ru) alloys (up to 0.5 mm) in ore occurrences along the Ko River in the Sisim...

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Rh–Ir diagram showing compositional variations of <span class="search-highlight">kuvaevite</span> (Kuv), tamurait...

Rh–Ir diagram showing compositional variations of kuvaevite (Kuv), tamurait...

in Kuvaevite, Ir 5 Ni 10 S 16 , a New Mineral Species, Its Associations and Genetic Features, from the Sisim River Placer Zone, Eastern Sayans > Russian Geology and Geophysics

Published: 01 December 2022

Fig. 5. Rh–Ir diagram showing compositional variations of kuvaevite (Kuv), tamuraite (Tmr), torryweiserite (Tyw), and ferrotorryweiserite (Ftyw) from the Ko River placers (in a.p.f.u. recalculated to the sum of 31 a.p.f.u.).

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Ni–Fe–Cu diagram showing the compositional variations of <span class="search-highlight">kuvaevite</span>, tamurai...

Ni–Fe–Cu diagram showing the compositional variations of kuvaevite, tamurai...

in Kuvaevite, Ir 5 Ni 10 S 16 , a New Mineral Species, Its Associations and Genetic Features, from the Sisim River Placer Zone, Eastern Sayans > Russian Geology and Geophysics

Published: 01 December 2022

Fig. 10. Ni–Fe–Cu diagram showing the compositional variations of kuvaevite, tamuraite, torryweiserite and ferrotorryweiserite (atomic ratios): from the Ko River placer ( 1 ), as compared to compositions of related minerals from various massifs and regions ( Fig. 7 ) (blue rhombs, 2 ).

Journal Article

The Platinum-Group Minerals of the River Ko Watershed, Sisim Placer Zone, Eastern Sayans, Russia, and the Differentiation of Multicomponent Melts

Andrei Y. Barkov, Nadezhda D. Tolstykh, Andrey A. Nikiforov, Robert F. Martin

Journal: The Canadian Journal of Mineralogy and Petrology

Publisher: Mineralogical Association of Canada

Published: 29 July 2023

The Canadian Journal of Mineralogy and Petrology (2023) 61 (4): 805–824.

DOI: https://doi.org/10.3749/2200020

... pentlandite-related minerals, likely including oberthürite, postdate the crystallization of laurite; these may be Ru-enriched and may contain lamellar grains of torryweiserite or ferrotorryweiserite, both of which may represent exsolution products. These two species, and the related kuvaevite, which locally...

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Rh–Ir diagram showing the compositional variations of minerals related to k...

in Kuvaevite, Ir 5 Ni 10 S 16 , a New Mineral Species, Its Associations and Genetic Features, from the Sisim River Placer Zone, Eastern Sayans > Russian Geology and Geophysics

Published: 01 December 2022

Fig. 8. Rh–Ir diagram showing the compositional variations of minerals related to kuvaevite (in a.p.f.u.) recalculated to the sum 31 a.p.f.u. The symbols and references are the same as those used in Fig. 7 .

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Variations of indexes Ir# [100 Ir/(Ir + Rh + Pt)] and Ni# [100 Ni/(Ni + Fe ...

in Kuvaevite, Ir 5 Ni 10 S 16 , a New Mineral Species, Its Associations and Genetic Features, from the Sisim River Placer Zone, Eastern Sayans > Russian Geology and Geophysics

Published: 01 December 2022

Fig. 9. Variations of indexes Ir# [100 Ir/(Ir + Rh + Pt)] and Ni# [100 Ni/(Ni + Fe + Cu)] in minerals related to kuvaevite. The symbols and references are the same as those used in Fig. 7 .

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Variations of indexes Ir# [100 Ir/(Ir+Rh+Pt)] and Ni# [100 Ni/(Ni+Fe+Cu)] i...

in Kuvaevite, Ir 5 Ni 10 S 16 , a New Mineral Species, Its Associations and Genetic Features, from the Sisim River Placer Zone, Eastern Sayans > Russian Geology and Geophysics

Published: 01 December 2022

Fig. 6. Variations of indexes Ir# [100 Ir/(Ir+Rh+Pt)] and Ni# [100 Ni/(Ni+Fe+Cu)] in compositions of kuvaevite, tamuraite, torryweiserite and ferrotorryweiserite from the Ko River placers. The symbols are the same as those used in Fig. 5 .

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$Electron backscatter diffraction images (EBSD) and the Kikuchi lines obtain...$

Electron backscatter diffraction images (EBSD) and the Kikuchi lines obtain...

in Kuvaevite, Ir 5 Ni 10 S 16 , a New Mineral Species, Its Associations and Genetic Features, from the Sisim River Placer Zone, Eastern Sayans > Russian Geology and Geophysics

Published: 01 December 2022

Fig. 4. Electron backscatter diffraction images (EBSD) and the Kikuchi lines obtained for two kuvaevite grains ( a–f ), shown in Fig. 2 a, b (the probe spots are marked with green crosses in Fig. 4 a, d ), where the indexes corresponding to the space group R 3 m are shown.

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BSE images showing characteristic examples of the drop-like inclusions host...

in Kuvaevite, Ir 5 Ni 10 S 16 , a New Mineral Species, Its Associations and Genetic Features, from the Sisim River Placer Zone, Eastern Sayans > Russian Geology and Geophysics

Published: 01 December 2022

Fig. 2. BSE images showing characteristic examples of the drop-like inclusions hosted by placer grains of Os–Ir alloys (labeled as Os–Ir here and elsewhere) from the ore occurrences of the Ko River placer zone ( a, b ). The inclusions consist of kuvaevite (Kuv), Rh-bearing pentlandite (Pn

Journal Article

Newsletter 58

Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, Stuart J. Mills

Journal: Mineralogical Magazine

Publisher: Mineralogical Society of Great Britain and Ireland

Published: 01 December 2020

Mineralogical Magazine (2020) 84 (6): 971–975.

DOI: https://doi.org/10.1180/mgm.2020.93

.... and Meyer, H.-P. (2020) Alumino-oxy-rossmanite, IMA 2020-008b. CNMNC Newsletter No. 58; Mineralogical Magazine , 84 , https://doi.org/10.1180/mgm.2020.93 IMA No. 2020-043 Kuvaevite Ir 5 Ni 10 S 16 Sisim Placer Zone, River Sisim basin, southern portion of Krasnoyarskiy kray, central...

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Fe–Ni diagram showing the compositional variations of minerals related to k...

in Kuvaevite, Ir 5 Ni 10 S 16 , a New Mineral Species, Its Associations and Genetic Features, from the Sisim River Placer Zone, Eastern Sayans > Russian Geology and Geophysics

Published: 01 December 2022

Fig. 7. Fe–Ni diagram showing the compositional variations of minerals related to kuvaevite (in a.p.f.u.) recalculated to the sum 31 a.p.f.u. Compositions of ophiolites from the Troodos massif, Cyprus ( 1 ) ( McElduff and Stumpfl, 1990 ), chromitites in ophiolites at Thetford Mines, Canada ( 2

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Associations and textural features of the inclusions of PGE minerals hosted...

in Kuvaevite, Ir 5 Ni 10 S 16 , a New Mineral Species, Its Associations and Genetic Features, from the Sisim River Placer Zone, Eastern Sayans > Russian Geology and Geophysics

Published: 01 December 2022

of composition Os 47.0 Ir 26.6 Ru 22.2 Pt 3.1 Ni 1.1 ; c – in the inclusion, the mineral association is represented by kuvaevite (Kuv), Rh-bearing pentlandite (Pn), laurite (Lrt) and irarsite (Irs); d – an inclusion containing torryweiserite (Tyw), Rh-bearing pentlandite (Pn), chalcopyrite (Ccp) and zoned

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(a, b) Inclusions that are composed of laurite [Lrt], Rh–(Ir)-rich pentland...

in The Platinum-Group Minerals of the River Ko Watershed, Sisim Placer Zone, Eastern Sayans, Russia, and the Differentiation of Multicomponent Melts > The Canadian Journal of Mineralogy and Petrology

Published: 29 July 2023

Fig. 9. (a, b) Inclusions that are composed of laurite [Lrt], Rh–(Ir)-rich pentlandite [Pn], kuvaevite [Kuv], a Pt–Fe alloy, and miassite (Mia?). (с) A composite inclusion consists of a zoned grain of laurite with a core of Lrt-1 [(Ru 0.60 Os 0.21 Ni 0.17 Ir 0.12 ) Σ1.10 S 1.90 ] and rim of Lrt-2

Journal Article

Oberthürite, Rh 3 (Ni,Fe) 32 S 32 and torryweiserite, Rh 5 Ni 10 S 16 , two new platinum-group minerals from the Marathon deposit, Coldwell Complex, Ontario, Canada: Descriptions, crystal-chemical considerations, and comments on the geochemistry of rhodium

Andrew M. McDonald, Ingrid M. Kjarsgaard, Louis J. Cabri, Kirk C. Ross, Doreen E. Ames, Luca Bindi, David J. Good

Journal: The Canadian Mineralogist

Publisher: Mineralogical Association of Canada

Published: 13 December 2021

The Canadian Mineralogist (2021) 59 (6): 1833–1863.

DOI: https://doi.org/10.3749/canmin.2100014

... detection to 10.20 wt.% and Ir from 17.31 to 46.98 wt.%) was also recognized by Prof. Barkov in the Sisim Placer Zone. It has subsequently been accepted as the new mineral species, kuvaevite (2020-043) and is considered to be the Ir-analogue of torryweiserite, having the ideal composition Ir 5 Ni 10 S 16...

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(a) An unusual grain of Ir–Pt–Os alloy [Ir 35.6 Pt 24.7 Os 20.5 Ru 7.7 Rh 7...

in The Platinum-Group Minerals of the River Ko Watershed, Sisim Placer Zone, Eastern Sayans, Russia, and the Differentiation of Multicomponent Melts > The Canadian Journal of Mineralogy and Petrology

Published: 29 July 2023

Fig. 4. (a) An unusual grain of Ir–Pt–Os alloy [Ir 35.6 Pt 24.7 Os 20.5 Ru 7.7 Rh 7.0 Fe 3.2 Ni 1.3 ] partially replaced by laurite [Lrt, (Ru 0.84 Os 0.09 Ir 0.04 Rh 0.04 ) Σ1.01 S 1.99 ], associated with kuvaevite [Kuv, (Ir 3.76 Rh 0.87 Pt 0.31 ) Σ4.94 (Ni 4.59 Fe 3.18 Cu 1.91 Co 0.33 ) Σ10.01 S

Journal Article

Newsletter 61

Ritsuro Miyawaki, Frédéric Hatert, Marco Pasero, Stuart J. Mills

Journal: Mineralogical Magazine

Publisher: Mineralogical Society of Great Britain and Ireland

Published: 01 June 2021

Mineralogical Magazine (2021) 85 (3): 459–463.

DOI: https://doi.org/10.1180/mgm.2021.48

... Krasnoyarsk, southwestern Eastern Sayans, Russia Andrei Y. Barkov*, Nadezhda D. Tolstykh and Robert F. Martin *E-mail: [email protected] The Fe-dominant analogue of kuvaevite Trigonal: R $\overline 3$ m a = 7.073(1), c = 34.277(8) Å 5.774(45), 3.053(43), 3.011(100), 2.996...

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Journal Article

Mineral–Geochemical and Geotectonic Features of the Lotmvara-II Ultrabasic Sill, Serpentinite Belt (Kola Peninsula)

A.Y. Barkov, A.A. Nikiforov, V.N. Korolyuk, R.F. Martin

Journal: Russian Geology and Geophysics

Publisher: Novosibirsk State University

Published: 01 October 2023

Russ. Geol. Geophys. (2023) 64 (10): 1161–1178.

DOI: https://doi.org/10.2113/RGG20234538

... , A.Y. , Tolstykh , N.D. , Martin , R.F. , Tamura , N. , Ma , C. , Nikiforov , A.A. , 2022c . Kuvaevite, Ir 5 Ni 10 S 16 , a new mineral species, its associations and genetic features, from the Sisim River placer zone, Eastern Sayans . Russ. Geol. Geophys. 63 ( 12 ), 1373...

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