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.
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
- 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