| It was a waste product from the production of radium from the pitchblende deposits around Great Bear Lake in northern Canada. |
| He was probably one of the few Canadian prospectors of that time who could have identified the pitchblende mineral. |
| The project at hand is to extract the newly discovered deposits of pitchblende on these satellites of Jupiter. |
| With his dog team on his second journey in search of pitchblende he had traveled fifty miles, and the day was still young. |
| The first discovery of pitchblende in the United States was associated with gold ores at the Wood mine in Gilpin County. |
| It would take a deposit of pitchblende richer than anything I've ever heard of to penetrate the lead. |
