Uraninite/Gummite - Ruggles Mine, Grafton, Grafton County, New Hampshire, USA

UO₂

This specimen displays the characteristic splotchy black/grey Uraninite with areas transitioning to orange gummite. This specimen also contains very minor Autunite that can be seen with a UV light.

Approx. specimen size: 60mm x 45mm x 30mm

Approx. specimen activity on an SE International Ranger EXP: 105 000 cpm