IMA mineral species

Carlosbarbosaite

(UO₂)₂Nb₂O₆(OH)₂·2H₂O

Uranyl niobate mineral.

Carlosbarbosaite specimen — Carlosbarbosaite.jpg · Wikimedia Commons (see file page for author & license)

Properties

🔷 Orthorhombic

Chemical formula	(UO₂)₂Nb₂O₆(OH)₂·2H₂O
Elements	U, O, Nb, H
Crystal system	Orthorhombic
Mohs hardness	—
Density	—
Streak	—
Color	—
IMA symbol	Cbb

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

🌍 Where it's found

Type locality (where it was first described): Jaguaraçu, Brazil

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

Carlosbarbosaite on Mindat.org
Wikidata item Q9697436 (source of this page's data – you can correct it there)