Uraninite, Vandendriesscheite: Ruggles Mine, Grafton, Grafton County, New Hampshire, USA

Species: Uraninite, Vandendriesscheite

Locality: Ruggles Mine, Grafton, Grafton County, New Hampshire, USA

Dimensions: 2 x 1.5 x 2.1 – ~20 grams

Ex. Eric Quinter Collection 

(Coll. # U/Th 0520)

Orange vandendriesscheite and yellow schoepite and paulscherrerite partial replacement of black uraninite (aka, “gummite”) with dark brown zircon. Identifications based on comparisons to descriptions in Frondel (1956). Eric Quinter specimen U/Th 0520.