pitchblende उदाहरण वाक्य
उदाहरण वाक्य
- Radium does not exist free in nature; rather, like uranium, it is melded into the mineral pitchblende.
- In spite of occasional references to being inspired by jazz, very little of Pitchblende's music was improvisational.
- Major mineralisation styles are quartz-carbonate-pitchblende and quartz-calcite-arsenide-Ag-pitchblende veins.
- Major mineralisation styles are quartz-carbonate-pitchblende and quartz-calcite-arsenide-Ag-pitchblende veins.
- The uranium minerals ( mainly pitchblende ) occur as impregnations, thin veinlets or in breccia zones in these bodies.
- Radium, however, was more elusive; it is closely related chemically to barium, and pitchblende contains both elements.
- Pitchblende, after removal of the radioactive elements uranium and thorium, was more radioactive than the uranium and thorium combined.
- The first uranium identified in the USA was pitchblende from the Wood gold mine at Central City, Colorado in 1871.
- Only the first type is a primary mineralisation, while the latter two carry remobilised pitchblende from the older vein types.
- The Canadian uranium industry, however, really began with the 1932 discovery of pitchblende at Port Radium, Northwest Territories.