'Until WWII this ore was used only as a source for radium; then it became a source of uranium, too'
Pitchblende
ORES: Until WWII this ore was used only as a source for radium; then it became a source of uranium, too
Until WWII this ore was used only as a source for radium; then it became a source of uranium, too
Until WWII this ore was used only as a source for radium; then it became a source of uranium, too
ORES
Pitchblende
ORES