The system Pd-Ag-S: phase relations and mineral assemblages

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Marco E. Ciriotti
Messaggi: 26570
Iscritto il: ven 25 giu, 2004 11:31
Località: via San Pietro, 55 I-10073 Devesi/Cirié TO - Italy
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The system Pd-Ag-S: phase relations and mineral assemblages

Messaggio da Marco E. Ciriotti » ven 10 gen, 2020 12:01

Prossima pubblicazione.

Referenza:
▪ Vymazalová, A., Laufek, F., Kristavchuk, A.V., Chareev, D.A. (2020): The system Pd-Ag-S: phase relations and mineral assemblages. Mineralogical Magazine, 84, (in press).

Abstract:
Phase equilibria in the system Pd-Ag-S were studied using evacuated silica-glass tubes method at 400°C and 550°C. In the system we synthesized three ternary phases: coldwellite (Pd3Ag2S), kravtsovite (PdAg2S), and a new phase Pd3Ag13S4. At 400 ºС, coldwellite forms a stable association with vysotskite (PdS) and vasilite (Pd16S7), vysotskite and kravtsovite, phase Pd4S and Ag-Pd alloy, it also coexists with a new phase Pd3Ag13S4. Kravtsovite is stable up to 507 °C, the presence of kravtsovite in mineral assemblage reflects its formation below this temperature. The occurrence of coldwellite, vysotskite, and Ag2S together in equilibrium reflects the formation of this mineral assemblage above this temperature (507°C). Coldwellite is stable up at 940 ºС. Mineral assemblages defined in this study can be expected in Cu-Ni-PGE mineral deposits, associated with mafic and ultramafic igneous rocks, in particular in mineralizations with known silver-palladium sulphides.
Marco E. Ciriotti

«Things are interesting only in so far as they relate themselves to other things»

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Marco E. Ciriotti
Messaggi: 26570
Iscritto il: ven 25 giu, 2004 11:31
Località: via San Pietro, 55 I-10073 Devesi/Cirié TO - Italy
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Re: The system Pd-Ag-S: phase relations and mineral assemblages

Messaggio da Marco E. Ciriotti » gio 26 mar, 2020 17:41

Pubblicazione avvenuta.

Referenza:
▪ Vymazalová, A., Laufek, F., Kristavchuk, A.V., Chareev, D.A. (2020): The system Pd-Ag-S: phase relations and mineral assemblages. Mineralogical Magazine, 84, 125-130.
Marco E. Ciriotti

«Things are interesting only in so far as they relate themselves to other things»

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