IMA mineral species

Alstonite

BaCa(CO₃)₂

Carbonate mineral.

RedPinkBrownGrayWhite & Clear

Alstonite specimen
Alstonite-Witherite-oldeuro-107a.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaBaCa(CO₃)₂
ElementsBa, Ca, C, O
Crystal systemTriclinic
Mohs hardness—
Density—
Streakwhite
Color—
IMA symbolAsn
Nickel–Strunz class5.AB.35

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

🌍 Where it's found

Type locality (where it was first described): Acomb, United Kingdom · Brownley Hill Mine, United Kingdom

  • 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.