from The Century Dictionary and Cyclopedia
- n. Same as torbernite.
Sorry, no etymologies found.
Her experiments with synthetic chalcolite, the study of all chemical compounds of uranium and thorium, and the testing of all known chemical elements and certain minerals all occurred in this early period.
Her experiments with synthetic chalcolite supported her hypothesis and prompted Pierre Curie to involve himself fully in the study of radioactive substances.
To explain this point I prepared synthetic chalcolite from pure products, and obtained crystals, whose activity was completely consistent with their uranium content; this activity is about half that of uranium.
But an unexpected fact was noted: certain minerals (pitchblende, chalcolite, autunite) had a greater activity than might be expected on the basis of their uranium or thorium content.