| 31. | Radium does not exist free in nature; rather, like uranium, it is melded into the mineral pitchblende.
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| 32. | In spite of occasional references to being inspired by jazz, very little of Pitchblende's music was improvisational.
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| 33. | Major mineralisation styles are quartz-carbonate-pitchblende and quartz-calcite-arsenide-Ag-pitchblende veins.
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| 34. | Major mineralisation styles are quartz-carbonate-pitchblende and quartz-calcite-arsenide-Ag-pitchblende veins.
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| 35. | The uranium minerals ( mainly pitchblende ) occur as impregnations, thin veinlets or in breccia zones in these bodies.
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| 36. | Radium, however, was more elusive; it is closely related chemically to barium, and pitchblende contains both elements.
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| 37. | Pitchblende, after removal of the radioactive elements uranium and thorium, was more radioactive than the uranium and thorium combined.
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| 38. | The first uranium identified in the USA was pitchblende from the Wood gold mine at Central City, Colorado in 1871.
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| 39. | Only the first type is a primary mineralisation, while the latter two carry remobilised pitchblende from the older vein types.
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| 40. | The Canadian uranium industry, however, really began with the 1932 discovery of pitchblende at Port Radium, Northwest Territories.
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