IMA mineral species

Oboniobite

Mg₄Nb₂O₉

Properties

⚖ Density4.348 g/cm³
Heavy
Chemical formulaMg₄Nb₂O₉
ElementsMg, Nb, O
Crystal systemTrigonal
Mohs hardness—
Density4.348 g/cm³
Streak—
Color—
IMA symbolObo
Nickel–Strunz class4.CB.

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

🌍 Where it's found

Type locality (where it was first described): Bayan Obo mine, People's Republic of China

  • 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.