Ag3AuS2

Petrovskaite · Ag3AuS2

Petrovskaite is a rare, metastable semiconducting mineral composed of silver, gold, and sulfur.

AgAuS
Crystal structure of Ag3AuS2
Ground-state structure · Materials Project
Overview

About Petrovskaite

Petrovskaite is a rare sulfide compound composed of silver and gold. As a semiconducting material, it represents a specialized niche in mineralogy where noble metals integrate into a sulfur-based lattice structure. Its existence as a metastable phase highlights the complex geochemical conditions required for its formation in nature.

Due to its scarcity and the specific conditions needed for synthesis, this compound is primarily of interest to mineralogists and materials scientists studying phase stability. Its electronic properties make it a subject of fundamental research into how precious metal sulfides behave in solid-state systems.

At a glance

Key Properties

Cross-validated computational properties for Petrovskaite, aggregated across 3 databases.

Band Gap

0.18–1.56 eV
Range across DFT structures

Energy Above Hull

0.026 eV/atom
Best (lowest) across sources

Stability

Metastable
2 DFT sources

Structures

11
3 databases, 3 space groups
Uses

Applications

Where Petrovskaite is used.

Mineralogical researchFundamental materials science studies
Reference

Frequently Asked Questions

Common questions about Petrovskaite, answered from cross-validated data.

What is Ag3AuS2?

Petrovskaite is a rare, metastable semiconducting mineral composed of silver, gold, and sulfur.

More questions
What is Ag3AuS2 used for?
Petrovskaite (Ag3AuS2) is used in mineralogical research and fundamental materials science studies.
What is the band gap of Ag3AuS2?
Petrovskaite (Ag3AuS2) has a DFT-computed band gap of 0.18–1.56 eV across 11 reported structures.
Is Ag3AuS2 a metal, semiconductor, or insulator?
With a band gap up to 1.56 eV it is a semiconductor.
Is Ag3AuS2 thermodynamically stable?
Petrovskaite (Ag3AuS2) has a lowest energy above hull of 0.026 eV/atom (metastable).
How many polymorphs of Ag3AuS2 are known?
11 structures of Ag3AuS2 are reported across 3 databases, spanning 3 distinct space groups.
What elements does Ag3AuS2 contain?
Petrovskaite (Ag3AuS2) contains Ag, Au, and S (3 elements).
Where does the data for Ag3AuS2 come from?
Ag3AuS2 data is cross-referenced from latticegraph.
Comparison

How It Compares

As a rare mineralogical phase, this compound occupies a unique position in the study of silver-gold-sulfur systems. Unlike more common binary sulfides, it represents a complex ternary arrangement that is inherently metastable, requiring precise conditions to maintain its structural integrity.

Data sources & attribution
  • latticegraph — Lattice Graph Materials Intelligence Platform

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