| This enrichment seems to be associated with the mineral torbernite, a hydrated copper uranyl phosphate. |
| During this time it was determined that torbernite, a secondary uranium copper phosphate mineral developed along fracture faces, was the dominant uranium mineral present. |
| Though closely resembling the tetragonal torbernite in form, it crystallizes in the orthorhombic system and is optically biaxial. |
