IMA mineral species

Penobsquisite

Ca₂Fe²⁺[Cl|B₉O₁₃(OH)₆]Cl * 4H₂O

Borate mineral.

Properties

Chemical formulaCa₂Fe²⁺[Cl|B₉O₁₃(OH)₆]Cl * 4H₂O
ElementsCa, Fe, Cl, B, O, H
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolPnb
Nickel–Strunz class6.GB.10

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

🌍 Where it's found

Type locality (where it was first described): Potash Corporation of Saskatchewan mine, Canada

  • 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.