Autunite: Urgeiriça Mines, Canas de Senhorim, Nelas, Viseu, Portugal

Description

Species: Autunite
Locality: Urgeiriça Mines, Canas de Senhorim, Nelas, Viseu, Portugal
Dimensions: 7.8 x 2.1 x 3.4 cm

Very nice specimen of vivid yellow-green, well-formed autunite crystals on matrix from the Urgeiriça Mines, Canas de Senhorim, Nelas, Viseu, Portugal. Very nice for the species at this classic locality. Ex. Eric Quinter Collection. Rare!