M MineralystRock & Mineral Guide
Mineral

Realgar

Realgar — reference photo

Realgar is a mineral with the chemical formula AsS. It has a Mohs hardness of 1.5 - 2 and adamantine to resinous luster.

Realgar properties

TypeMineral
Chemical formulaAsS
Mohs hardness1.5 - 2
LusterAdamantine to resinous
Typical colorsRed to orange
FormationTypically forms in volcanic sublimates or in hydrothermal veins
Rarity6 / 10

Mohs hardness 1.5–2 — very soft

1 · Talc5 · Apatite10 · Diamond
Identifying a mineral with the Mineralyst app

Mineralyst

Wondering what you found?

Point your camera at any mineral and Mineralyst identifies it in seconds — with guided follow-up questions for a confident answer.

  • Build a collection
  • Keep a wish list
  • 5 photos per find
  • Share with friends

Related rocks & minerals

RhodochrositeRhodochrositeRhodoniteRhodoniteRutileRutileScheeliteScheeliteSeleniteSeleniteSideriteSiderite