Uranocircita
Uranocircita is a mineral with formula Ba(UO₂)₂(PO₄)₂·10H₂O, in the Fosfatos group. This specimen comes from Mina Diéresis, El Cabril (Hornachuelos), Córdoba, Andalucía, España and joined the Terrium collection in 2001.
Description
Two small specimens that are daughters of (0212)
History of this specimen
While I was handling (0212), it broke and "gave birth" to two small specimens. The previous owner, González del Tánago & Chanrai, is the author of the book "Minerales y minas de Madrid".
About Uranocircita
Uranocircite is a hydrated uranium-barium phosphate, yellowish-green in colour with a pearly lustre. It forms in the oxidised zone of uranium deposits, usually as laminar or microcrystalline aggregates. And rutile is one of the five forms of titanium dioxide, TiO2, a polymorph of brookite. Although in fact this is the niobium-bearing variety, ilmenorutile.
About the locality
The Sierra Albarrana, in northern Córdoba, is one of the classic Spanish uranium localities, with autunite, uranocircite, torbernite and metauranocircite occurring in fractures of quartzites and gneisses.
Technical data
- Catalogue No.
- 0371
- Composition
- Ba(UO₂)₂(PO₄)₂·10H₂O
- Name
- Uranocircita
- Group
- Fosfatos
- Category
- Núcleus Ardens
- Matrix
- Roca oscura con zonas rojizas y costras verdosas
- Associations
- rutilo, niobio
- Mine
- Mina Diéresis
- District / Municipality
- El Cabril (Hornachuelos)
- Province
- Córdoba
- Region
- Andalucía
- Country
- España
- Acquired
- 2001
- Ex-collection
- González del Tánago & Chanrai
- Etymology
- From the element uranium and the Greek "kirkos" ("falcon"), in honour of the type locality Falkenstein ("Falcon Stone") in Bavaria, Germany.
- Quality
- Muy buena
- Value trend
- Estable
Related specimens
- Abellaíta — España
- Abernathyita — España
- Abernathyita — España
- Abernathyita — España
- Aerenita — España
- Aerinita (fibrosa) — España
- Analcima — España
- Analcima — España