Standard

Transformation of pyrite to pyrrhotite in the presence of Au-Ag alloys at 500 °c. / Palyanova, Galina; Kokh, Konstantin; Seryotkin, Yurii.

In: American Mineralogist, Vol. 101, No. 12, 01.12.2016, p. 2731-2737.

Research output: Contribution to journal › Article › peer-review

Harvard

Palyanova, G, Kokh, K & Seryotkin, Y 2016, 'Transformation of pyrite to pyrrhotite in the presence of Au-Ag alloys at 500 °c', American Mineralogist, vol. 101, no. 12, pp. 2731-2737. https://doi.org/10.2138/am-2016-5808

APA

Palyanova, G., Kokh, K., & Seryotkin, Y. (2016). Transformation of pyrite to pyrrhotite in the presence of Au-Ag alloys at 500 °c. American Mineralogist, 101(12), 2731-2737. https://doi.org/10.2138/am-2016-5808

Vancouver

Palyanova G, Kokh K, Seryotkin Y. Transformation of pyrite to pyrrhotite in the presence of Au-Ag alloys at 500 °c. American Mineralogist. 2016 Dec 1;101(12):2731-2737. doi: 10.2138/am-2016-5808

Author

Palyanova, Galina ; Kokh, Konstantin ; Seryotkin, Yurii. / Transformation of pyrite to pyrrhotite in the presence of Au-Ag alloys at 500 °c. In: American Mineralogist. 2016 ; Vol. 101, No. 12. pp. 2731-2737.

BibTeX

@article{005c68975f0348b7a4a176b56cb172bc,
title = "Transformation of pyrite to pyrrhotite in the presence of Au-Ag alloys at 500 °c",
abstract = "Dry annealing of AuxAg1-x alloys (x = 0.19, 0.35, 0.56 or of fineness 300, 500, 700‰) and pyrite was used to reveal the solubility of Au (Ag) in FeS2 and study phase equilibria in the FeS2-AuxAgi1-x system at 500 °C. Pyrrhotite, acanthite, and uytenbogaardtite and Au-Ag alloys with increased fineness were established at the contacts of pyrite blocks with Au-Ag plates. The obtained results evidence the absence of solubility between FeS2 and Au (Ag) at 500 °C. The Ag content in alloys influences the stability of pyrite and contributes to its transformation in pyrrhotite and sulfidation and ennobling of Au-Ag alloys. Au-Ag sulfides and pyrrhotite may be present in the sulfide ores of metamorphogene deposits as annealing products of Au-Ag-pyrite-bearing ores.",
keywords = "Au-Ag sulfides, Desulfidation, ennobling of Au-Ag alloys, isomorphism, pyrite, pyrrhotite, sulfidation, thermodiffusion, visible and {"}invisible{"} gold (silver)",
author = "Galina Palyanova and Konstantin Kokh and Yurii Seryotkin",
year = "2016",
month = dec,
day = "1",
doi = "10.2138/am-2016-5808",
language = "English",
volume = "101",
pages = "2731--2737",
journal = "American Mineralogist",
issn = "0003-004X",
publisher = "Walter de Gruyter GmbH",
number = "12",

}

RIS

TY - JOUR

T1 - Transformation of pyrite to pyrrhotite in the presence of Au-Ag alloys at 500 °c

AU - Palyanova, Galina

AU - Kokh, Konstantin

AU - Seryotkin, Yurii

PY - 2016/12/1

Y1 - 2016/12/1

N2 - Dry annealing of AuxAg1-x alloys (x = 0.19, 0.35, 0.56 or of fineness 300, 500, 700‰) and pyrite was used to reveal the solubility of Au (Ag) in FeS2 and study phase equilibria in the FeS2-AuxAgi1-x system at 500 °C. Pyrrhotite, acanthite, and uytenbogaardtite and Au-Ag alloys with increased fineness were established at the contacts of pyrite blocks with Au-Ag plates. The obtained results evidence the absence of solubility between FeS2 and Au (Ag) at 500 °C. The Ag content in alloys influences the stability of pyrite and contributes to its transformation in pyrrhotite and sulfidation and ennobling of Au-Ag alloys. Au-Ag sulfides and pyrrhotite may be present in the sulfide ores of metamorphogene deposits as annealing products of Au-Ag-pyrite-bearing ores.

AB - Dry annealing of AuxAg1-x alloys (x = 0.19, 0.35, 0.56 or of fineness 300, 500, 700‰) and pyrite was used to reveal the solubility of Au (Ag) in FeS2 and study phase equilibria in the FeS2-AuxAgi1-x system at 500 °C. Pyrrhotite, acanthite, and uytenbogaardtite and Au-Ag alloys with increased fineness were established at the contacts of pyrite blocks with Au-Ag plates. The obtained results evidence the absence of solubility between FeS2 and Au (Ag) at 500 °C. The Ag content in alloys influences the stability of pyrite and contributes to its transformation in pyrrhotite and sulfidation and ennobling of Au-Ag alloys. Au-Ag sulfides and pyrrhotite may be present in the sulfide ores of metamorphogene deposits as annealing products of Au-Ag-pyrite-bearing ores.

KW - Au-Ag sulfides

KW - Desulfidation

KW - ennobling of Au-Ag alloys

KW - isomorphism

KW - pyrite

KW - pyrrhotite

KW - sulfidation

KW - thermodiffusion

KW - visible and "invisible" gold (silver)

UR - http://www.scopus.com/inward/record.url?scp=85002907201&partnerID=8YFLogxK

U2 - 10.2138/am-2016-5808

DO - 10.2138/am-2016-5808

M3 - Article

AN - SCOPUS:85002907201

VL - 101

SP - 2731

EP - 2737

JO - American Mineralogist

JF - American Mineralogist

SN - 0003-004X

IS - 12

ER -

ID: 25729027