IMA mineral species

Piypite

🪶 Soft, Scratches Easily

K₄Cu₄O₂(SO₄)₄·(Na,Cu)Cl

Oxysulfate mineral.

GreenBlack

Piypite specimen
Piypite-88672.jpg · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness2.5
12345678910
💅🪙🍶🔪💎

Scratches with a fingernail.

Chemical formulaK₄Cu₄O₂(SO₄)₄·(Na,Cu)Cl
ElementsK, Cu, O, S, Na, Cl
Crystal systemTetragonal
Mohs hardness2.5
Density—
Streak—
Color—
IMA symbolPiy
Nickel–Strunz class7.BC.40

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

Care & Handling

  • 🪶 Soft, Scratches Easily Mohs 2.5: softer than a steel knife, so it scratches easily. Store it apart from harder stones.

🌍 Where it's found

Type locality (where it was first described): Great Fissure eruption, Russia