IMA mineral species

Atheneite

Pd₂As₀.₇₅Hg₀.₂₅

Arsenide mineral.

GrayWhite & Clear

Atheneite specimen
BSE images showing PGMs and Au association - Atheneite.png · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness5
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💅🪙🍶🔪💎

A steel knife scratches it, it won't scratch glass.

⚖ Density10.2 g/cm³
Very heavy
Chemical formulaPd₂As₀.₇₅Hg₀.₂₅
ElementsPd, As, Hg
Crystal systemHexagonal
Mohs hardness5
Density10.2 g/cm³
Streak—
Color—
IMA symbolAh
Nickel–Strunz class2.AC.05a

“—” means no reliable value in Wikidata yet. Check Mindat for full data.

🌍 Where it's found

Type locality (where it was first described): Itabira, Brazil

  • Type locality
  • Notable source / deposit
  • Country of origin

Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.