IMA mineral species

Thomsonite-Ca

NaCa₂(Al₅Si₅)O₂₀·6H₂O

Zeolite mineral.

Thomsonite-Ca specimen
Thomsonite-Ca-290015.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaNaCa₂(Al₅Si₅)O₂₀·6H₂O
ElementsNa, Ca, Al, Si, O, H
Crystal systemOrthorhombic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolThm-Ca
Nickel–Strunz class9.GA.10

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

🌍 Where it's found

Type locality (where it was first described): Old Kilpatrick, 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.