IMA mineral species

Brianroulstonite

Ca₃[B₅O₆(OH)₆](OH)Cl₂·8H₂O

Borate mineral.

Properties

Chemical formulaCa₃[B₅O₆(OH)₆](OH)Cl₂·8H₂O
ElementsCa, B, O, H, Cl
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolBrsn
Nickel–Strunz class6.EC.35

“—” 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.