IMA mineral species

Arcanite

K₂[SO₄]

Sulfate mineral.

YellowGoldWhite & Clear

Arcanite specimen
Arcanite.jpg · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness2
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Scratches with a fingernail.

🔷 Orthorhombic✏️ streak white
Chemical formulaK₂[SO₄]
ElementsK, S, O
Crystal systemOrthorhombic
Mohs hardness2
Density—
Streakwhite
Coloryellow, white
IMA symbolAcn
Nickel–Strunz class7.AD.05

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