IMA mineral species

Cylindrite

🪶 Soft, Scratches Easily

FePb₃Sn₄Sb₂S₁₄

Sulfosalt mineral.

BlackGray

Cylindrite specimen
Cylindrite-44378.jpg · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness2.5
12345678910
💅🪙🍶🔪💎

Scratches with a fingernail.

🔷 Triclinic✏️ streak black
Chemical formulaFePb₃Sn₄Sb₂S₁₄
ElementsFe, Pb, Sn, Sb, S
Crystal systemTriclinic
Mohs hardness2.5
Density—
Streakblack
Color—
IMA symbolCy
Nickel–Strunz class2.HF.25a

“—” 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.