Autunite: Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA

Description

Species: Autunite

Ex. Eric Quinter Collection

Locality: Tip Top Mine, Fourmile, Custer Mining District, Custer County, South Dakota, USA

Dimensions: 5.8 x 3.5 x 3.0 cm, 70 grams

Very unusual and hard to get locality for this secondary uranium mineral!