Cadmium substitution in miargyrite (AgSbS2) and related phases: An experimental reconnaissance

I. Kelleher; S. A T Redfern; R. A D Pattrick

doi:10.1180/minmag.1996.060.400.01

Cadmium substitution in miargyrite (AgSbS2) and related phases: An experimental reconnaissance

I. Kelleher, S. A T Redfern, R. A D Pattrick

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

Abstract

An experimental study of cadmium substitution into AgXS2 phases (X = As, Bi, Sb) indicates significant amounts of cadmium can be incorporated in the structure by the mechanism 2Cd ⇌ Ag + X. The limit of substitution of Cd in the high-temperature polymorph of miargyrite, β-AgSbS2 is 6.2 at.%, whereas the low-temperature polymorph, α-AgSbS2. can accommodate at least 12 at.% cadmium. Substitution of Cd into the cubic β-AgSbS2 induces a small monoclinic distortion and the unit cell becomes pseudo-cubic. The α ⇌ β transition in Cd-substituted miargyrites is modified by the solute ions, with both a reduction of Tc and transition smearing evident. Similar effects are also recorded in Cd-substituted AgAsS2and AgBiS2.

Original language	English
Pages (from-to)	393-401
Number of pages	8
Journal	Mineralogical Magazine
Volume	60
Issue number	3
DOIs	https://doi.org/10.1180/minmag.1996.060.400.01
Publication status	Published - Jun 1996

Keywords

As
Bi
Cadmium substitution
Miargyrite
Sb

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10.1180/minmag.1996.060.400.01

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title = "Cadmium substitution in miargyrite (AgSbS2) and related phases: An experimental reconnaissance",

abstract = "An experimental study of cadmium substitution into AgXS2 phases (X = As, Bi, Sb) indicates significant amounts of cadmium can be incorporated in the structure by the mechanism 2Cd ⇌ Ag + X. The limit of substitution of Cd in the high-temperature polymorph of miargyrite, β-AgSbS2 is 6.2 at.%, whereas the low-temperature polymorph, α-AgSbS2. can accommodate at least 12 at.% cadmium. Substitution of Cd into the cubic β-AgSbS2 induces a small monoclinic distortion and the unit cell becomes pseudo-cubic. The α ⇌ β transition in Cd-substituted miargyrites is modified by the solute ions, with both a reduction of Tc and transition smearing evident. Similar effects are also recorded in Cd-substituted AgAsS2and AgBiS2.",

keywords = "As, Bi, Cadmium substitution, Miargyrite, Sb",

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T1 - Cadmium substitution in miargyrite (AgSbS2) and related phases: An experimental reconnaissance

AU - Kelleher, I.

AU - Redfern, S. A T

AU - Pattrick, R. A D

N1 - Times Cited: 1

PY - 1996/6

Y1 - 1996/6

N2 - An experimental study of cadmium substitution into AgXS2 phases (X = As, Bi, Sb) indicates significant amounts of cadmium can be incorporated in the structure by the mechanism 2Cd ⇌ Ag + X. The limit of substitution of Cd in the high-temperature polymorph of miargyrite, β-AgSbS2 is 6.2 at.%, whereas the low-temperature polymorph, α-AgSbS2. can accommodate at least 12 at.% cadmium. Substitution of Cd into the cubic β-AgSbS2 induces a small monoclinic distortion and the unit cell becomes pseudo-cubic. The α ⇌ β transition in Cd-substituted miargyrites is modified by the solute ions, with both a reduction of Tc and transition smearing evident. Similar effects are also recorded in Cd-substituted AgAsS2and AgBiS2.

AB - An experimental study of cadmium substitution into AgXS2 phases (X = As, Bi, Sb) indicates significant amounts of cadmium can be incorporated in the structure by the mechanism 2Cd ⇌ Ag + X. The limit of substitution of Cd in the high-temperature polymorph of miargyrite, β-AgSbS2 is 6.2 at.%, whereas the low-temperature polymorph, α-AgSbS2. can accommodate at least 12 at.% cadmium. Substitution of Cd into the cubic β-AgSbS2 induces a small monoclinic distortion and the unit cell becomes pseudo-cubic. The α ⇌ β transition in Cd-substituted miargyrites is modified by the solute ions, with both a reduction of Tc and transition smearing evident. Similar effects are also recorded in Cd-substituted AgAsS2and AgBiS2.

KW - As

KW - Bi

KW - Cadmium substitution

KW - Miargyrite

KW - Sb

U2 - 10.1180/minmag.1996.060.400.01

DO - 10.1180/minmag.1996.060.400.01

M3 - Article

SN - 1471-8022

VL - 60

SP - 393

EP - 401

JO - Mineralogical Magazine

JF - Mineralogical Magazine

IS - 3

ER -

Cadmium substitution in miargyrite (AgSbS2) and related phases: An experimental reconnaissance

Abstract

Keywords

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