Autunita Verde
Autunita is a mineral with formula Ca(UO₂)₂(PO₄)₂·10-12H₂O, in the Fosfatos (Uranilo) group. This specimen comes from Mina Assunçao, Aldeia Nova, Ferreira de Aves, Viseu, Portugal and joined the Terrium collection in 2015.
History of this specimen
It was with Carlos G Bargueño.
About Autunita
Autunite is a hydrated uranyl-calcium phosphate, known for its fluorescence and for occurring in uranium oxidation zones.
About the locality
Assunção is now an inactive, restricted-access operation: the property is private, prior authorisation is required, an alarm system is present, and part of the pit was flooded after later enlargement.
Technical data
- Catalogue No.
- 0668
- Composition
- Ca(UO₂)₂(PO₄)₂·10-12H₂O
- Name
- Autunita
- Variety
- Verde
- Group
- Fosfatos (Uranilo)
- Category
- Núcleus Ardens
- Associations
- cuarzo
- Mine
- Mina Assunçao
- District / Municipality
- Aldeia Nova
- Province
- Ferreira de Aves
- Region
- Viseu
- Country
- Portugal
- Acquired
- 2015
- Ex-collection
- Antonino Bueno Yawes
- Etymology
- From the French "Autun", the type locality near which it was first described.
- Quality
- Top
- Value trend
- Al alza
Related specimens
- Autunita — Portugal
- Autunita — Portugal
- Autunita — Portugal
- Cuarzo — Portugal
- Descloizita — Portugal
- Descloizita — Portugal
- Dewindtita — Portugal
- Dewindtita — Portugal