IMA mineral species

Tacharanite

Ca₁₂Al₂Si₁₈O₃₃(OH)₃₆

Rare mineral, calcium aluminum silicate hydrate.

White & Clear

Tacharanite specimen
Natrolitereunion.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaCa₁₂Al₂Si₁₈O₃₃(OH)₃₆
ElementsCa, Al, Si, O, H
Crystal systemMonoclinic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolTch
Nickel–Strunz class9.HA.75

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

🌍 Where it's found

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