Crystopedia
IMA mineral species

Johnsenite-(Ce)

Na₁₂Ce₃Ca₆Mn₃Zr₃WSi₂₅O₇₃(CO₃)(OH)₂

Cyclosilicate mineral.

OrangeYellow

Properties

Chemical formulaNa₁₂Ce₃Ca₆Mn₃Zr₃WSi₂₅O₇₃(CO₃)(OH)₂
ElementsNa, Ce, Ca, Mn, Zr, W, Si, O, C, H
Crystal systemTrigonal
Mohs hardness—
Density—
Streakwhite
Color—
IMA symbolJsn-Ce
Nickel–Strunz class9.CO.10

“—” 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.

Learn more