IMA mineral species

Lorándite

TlAsS₂

Sulfosalt mineral.

RedGray

Lorándite specimen
Lorandite-Orpiment-sea81a.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaTlAsS₂
ElementsTl, As, S
Crystal systemMonoclinic
Mohs hardness—
Density5.264 g/cm³
Streak—
Color—
IMA symbolLor
Nickel–Strunz class2.HD.05

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

🌍 Where it's found

Type locality (where it was first described): Allchar deposit, North Macedonia

  • 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.