Uraninite, Carnotite: Grants District, McKinley Co., New Mexico, USA

Description

Species: Uraninite var. Pitchblende, Tyuyamunite, Carnotite

Locality: Grants District, McKinley Co., New Mexico, USA

Dimensions: 11 x 10 x 9.5 cm.

A nice large specimen of very high grade roll front style uranium ore replacing limestone from the Grants District, McKinley Co., New Mexico, USA. Measures ~100,000 CPM on my Ludlum model 3 survey meter with the 44-9 probe. Ex. Mount Holyoke College (Massachusetts). Rare!