IMA mineral species

Lalondeite

(Na,Ca)₆(Ca,Na)₃Si₁₆O₃₈(F,OH)₂*₃H₂O

Phyllosilicate mineral.

Properties

Chemical formula(Na,Ca)₆(Ca,Na)₃Si₁₆O₃₈(F,OH)₂*₃H₂O
ElementsNa, Ca, Si, O, F, H
Crystal system—
Mohs hardness—
Density—
Streak—
Color—
IMA symbolLal
Nickel–Strunz class9.EE.85

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

🌍 Where it's found

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