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torryweiserite

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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
Published: 13 December 2021
The Canadian Mineralogist (2021) 59 (6): 1833–1863.
DOI: https://doi.org/10.3749/canmin.2100014
...Andrew M. McDonald; Ingrid M. Kjarsgaard; Louis J. Cabri; Kirk C. Ross; Doreen E. Ames; Luca Bindi; David J. Good ABSTRACT Oberthürite, Rh 3 (Ni , Fe) 32 S 32 , and torryweiserite, Rh 5 Ni 10 S 16 , are two new platinum-group minerals discovered in a heavy-mineral concentrate from the Marathon...
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View PDF for article title, Oberthürite, Rh 3 (Ni,Fe) 32 S 32 and <span class="search-highlight">torryweiserite</span>, 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
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Image
Backscattered electron images and photomicrographs of oberthürite (Obt) and torryweiserite (Trw) and associated minerals. (a) Oberthürite (dark gray) intergrown with torryweiserite (light gray) in an intermingling manner. Note the inclusion of an unidentified Pd-As mineral (palladoarsenide?) which is completely surrounded by oberthürite and an inclusion of isoferroplatinum attached to the Pd-As mineral, again surrounded by oberthürite. (b) Oberthürite intergrown with torryweiserite in an intermingling manner. An inclusion of isoferroplantium is surrounded by both. (c) Oberthürite and torryweiserite with a sharp boundary between the two and with chalcopyrite. (d) Oberthürite and torryweiserite, sharing a sharp boundary, associated with bornite and a chlorite-group mineral. The lighter zones within the Trw correspond to areas enriched in Pt. (e) Torryweiserite occurring as an amoeboid inclusion in ferhodsite. (f) ibid. (g) The occurrence of oberthürite with millerite in a zone between chalcopyrite and magnetite. (h) Torryweiserite occurring in a composite grain dominated by zvyagintsevite. Abbreviations: Bn = bornite; Chl = chlorite; Cpy = chalcopyrite; Frd = ferhodsite; Ifp = isoferroplatinum; Mlr = millerite; Obt = oberthürite; Trw = oberthürite; Zvy = zvyagintsevite; Au = native gold.

Backscattered electron images and photomicrographs of oberthürite (Obt) and...

Published: 13 December 2021
Fig. 1. Backscattered electron images and photomicrographs of oberthürite (Obt) and torryweiserite (Trw) and associated minerals. (a) Oberthürite (dark gray) intergrown with torryweiserite (light gray) in an intermingling manner. Note the inclusion of an unidentified Pd-As mineral
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
Published: 01 December 2022
Russ. Geol. Geophys. (2022) 63 (12): 1373–1387.
DOI: https://doi.org/10.2113/RGG20224455
... 1.35 Pt 0.19 Ru 0.01 Os 0.01 )Σ 4.78 (Ni 4.54 Fe 3.75 Cu 1.79 Co 0.02 ) Σ10.10 S 16.13 (WDS) and (Ir 3.23 Rh 1.43 Pt 0.25 )Σ 4.91 (Ni 4.49 Fe 3.57 Cu 1.86 Co 0.06 ) Σ9.98 S 16.11 (SEM/EDS; n = 56). These are based on a total of 31 atoms according to structural data obtained for torryweiserite...
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View PDF for article title, Kuvaevite, Ir 5 Ni 10 S 16 , a New Mineral Species, Its Associations and Genetic Features, from the Sisim River Placer Zone, Eastern Sayans
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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
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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View PDF for article title, The Platinum-Group Minerals of the River Ko Watershed, Sisim Placer Zone, Eastern Sayans, Russia, and the Differentiation of Multicomponent Melts
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(a, b) Polymineralic inclusions enclosed within Os–Ir alloy grains composed of laurite [Lrt], Rh–(Pd)-bearing pentlandite or oberthürite [Pn], torryweiserite [Tyw], and a Pt–Fe alloy. (c, d) Droplet-like inclusions of miassite [Mia, (Rh12.67Ni1.85Ru1.05Cu0.87Fe0.54Ir0.16Os0.12)Σ17.25S14.75], Rh-rich pentlandite [Pn], Pt–Fe alloy, and torryweiserite [Tyw], likely present as exsolution-induced lamellae hosted by the pentlandite.

(a, b) Polymineralic inclusions enclosed within Os–Ir alloy grains composed...

Published: 29 July 2023
Fig. 7. (a, b) Polymineralic inclusions enclosed within Os–Ir alloy grains composed of laurite [Lrt], Rh–(Pd)-bearing pentlandite or oberthürite [Pn], torryweiserite [Tyw], and a Pt–Fe alloy. (c, d) Droplet-like inclusions of miassite [Mia, (Rh 12.67 Ni 1.85 Ru 1.05 Cu 0.87 Fe 0.54 Ir 0.16 Os
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MISCELLANEOUS REFINEMENT DATA FOR TORRYWEISERITE

Published: 13 December 2021
TABLE 8. MISCELLANEOUS REFINEMENT DATA FOR TORRYWEISERITE
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ATOM COORDINATES AND DISPLACEMENT PARAMETERS (Å 2 ) FOR TORRYWEISERITE

Published: 13 December 2021
TABLE 9. ATOM COORDINATES AND DISPLACEMENT PARAMETERS (Å 2 ) FOR TORRYWEISERITE
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POWDER X-RAY DATA FOR OBERTHÜRITE, PENTLANDITE, AND TORRYWEISERITE

Published: 13 December 2021
TABLE 5. POWDER X-RAY DATA FOR OBERTHÜRITE, PENTLANDITE, AND TORRYWEISERITE
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CHEMICAL COMPOSITIONS OF POSSIBLE TORRYWEISERITE FROM OTHER LOCALITIES

Published: 13 December 2021
TABLE 12. CHEMICAL COMPOSITIONS OF POSSIBLE TORRYWEISERITE FROM OTHER LOCALITIES
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REFLECTANCE DATA (IN AIR, AVERAGE OF n = 10 MEASUREMENTS) FOR OBERTHÜRITE...

Published: 13 December 2021
TABLE 2. REFLECTANCE DATA (IN AIR, AVERAGE OF n = 10 MEASUREMENTS) FOR OBERTHÜRITE AND TORRYWEISERITE
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CHEMICAL DATA (wt.%) FOR TORRYWEISERITE (AVERAGE BASED ON n = 10 ANALYSES...

Published: 13 December 2021
TABLE 4. CHEMICAL DATA (wt.%) FOR TORRYWEISERITE (AVERAGE BASED ON n = 10 ANALYSES)
Journal Article

New Mineral Names: High-Pressure and Precious Minerals

Aaron J. Celestian
Published: 01 April 2022
American Mineralogist (2022) 107 (4): 778–780.
DOI: https://doi.org/10.2138/am-2022-NMN107411
..., and then there are the minerals/collections that are culturally important and significant to the history of science. Here we investigate the newly discovered high-pressure minerals and highly precious minerals: davemaoite, kaitianite, elgoresyite, oberthüite, torryweiserite, palladothallite, fleetite, tamuraite, marathonite...
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Image
The reflectance curves of oberthürite and torryweiserite. For comparison, those for the related minerals cobaltpentlandite, rhodian pentlandite, and argentopentlandite are also included. See text for further details.

The reflectance curves of oberthürite and torryweiserite. For comparison, t...

Published: 13 December 2021
Fig. 2. The reflectance curves of oberthürite and torryweiserite. For comparison, those for the related minerals cobaltpentlandite, rhodian pentlandite, and argentopentlandite are also included. See text for further details.
Image
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.).

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

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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Raman spectra for oberthürite (green), torryweiserite (magenta), and Rh-free pentlandite (Red; Copper Cliff mine, Sudbury, Ontario, Canada). Wavenumbers of discernible absorption bands are indicated for each.

Raman spectra for oberthürite (green), torryweiserite (magenta), and Rh-fre...

Published: 13 December 2021
Fig. 3. Raman spectra for oberthürite (green), torryweiserite (magenta), and Rh-free pentlandite (Red; Copper Cliff mine, Sudbury, Ontario, Canada). Wavenumbers of discernible absorption bands are indicated for each.
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Bonding configuration around the Ni2S4 and Ni3S4 tetrahedra in torryweiserite showing the close approach between Ni2 and Ni3. Indicated distances are given in Å.

Bonding configuration around the Ni 2S 4 and Ni 3S 4 tetrahedra in torr...

Published: 13 December 2021
Fig. 6. Bonding configuration around the Ni 2S 4 and Ni 3S 4 tetrahedra in torryweiserite showing the close approach between Ni 2 and Ni 3. Indicated distances are given in Å.
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Binary plot of ΣPGE vs. ΣMe in torryweiserite using data from Table 4. R2 = 0.4613. Note that date for analysis 5 (Table 4) has been excluded, as it is considered an outlier.

Binary plot of ΣPGE vs . Σ Me in torryweiserite using data from Table 4 ...

Published: 13 December 2021
Fig. 9. Binary plot of ΣPGE vs . Σ Me in torryweiserite using data from Table 4 . R 2 = 0.4613. Note that date for analysis 5 ( Table 4 ) has been excluded, as it is considered an outlier.
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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.

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

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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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).

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

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

Marathonite, Pd 25 Ge 9 , and palladogermanide, Pd 2 Ge, two new platinum-group minerals from the Marathon deposit, Coldwell Complex, Ontario, Canada: Descriptions, crystal-chemical considerations, and genetic implications

Andrew M. McDonald, Doreen E. Ames, Ingrid M. Kjarsgaard, Louis J. Cabri, William Zhe, Kirk C. Ross, David J. Good
Published: 13 December 2021
The Canadian Mineralogist (2021) 59 (6): 1865–1886.
DOI: https://doi.org/10.3749/canmin.2100022
... pentlandite, oberthürite and torryweiserite, and silicates including a clinoamphibole and a Fe-rich chlorite-group mineral. Rounded, elongated grains of marathonite are up to 33 × 48 μm. Marathonite is white, but pinkish brown compared to palladogermanide and bornite. No streak or microhardness could...
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View PDF for article title, Marathonite, Pd 25 Ge 9 , and palladogermanide, Pd 2 Ge, two new platinum-group minerals from the Marathon deposit, Coldwell Complex, Ontario, Canada: Descriptions, crystal-chemical considerations, and genetic implications
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