Suppose a bearer of the Medal of Honor formed a stock corporation to exploit the pitchblende of Callisto.
With any luck, in six months we'll have every ounce of pitchblende left in the system sewed up.
The project at hand is to extract the newly discovered deposits of pitchblende on these satellites of Jupiter.
Reduced to its simplest terms, it meant this: the doctor had something as much greater than radium as radium is greater than the pitchblende of which a thousand tons are melted down to the one ounce of extract.
And he had some of that concentrated essence of pitchblende in the chest when we started.
Many of us have worked up pounds of pitchblende to extract the uranium oxids, and in so doing have poured down the waste-pipe or thrown into the dust-bin the more interesting and precious bodies.
With his dog team on his second journey in search of pitchblende he had traveled fifty miles, and the day was still young.
And then, think what it would mean to find pitchblende that would yield a large per cent of radium!
Then it was that for the first time Joyce told him the disappointing news of the test that had showed plenty of copper and nickel, but no worth-while amount of radium in his pitchblende samples.
Since it had been found that the report on the radium-bearing pitchblende must be delayed for some time, there was nothing for it but to go out in search of other prospects.
In this he was influenced by the recollection that he bore in the fusilage of his plane the samples of pitchblende that might mean a bright future for his old pal Johnny and his companions.
There's pitchblende in these rocky old ledges such as the world has never known.
The principal sources of uranium and radium are the minerals carnotite (hydrous potassium-uranium vanadate) and pitchblende or uraninite (uranium oxide).
Pitchblende is grayish-black, opaque, and so lacking in distinctive characteristics that it may readily be overlooked; hence future discoveries in various regions would not be surprising.
Pitchblende has been found in gold-bearing veins in Gilpin County, eastern Colorado, and in pegmatite dikes in the Appalachians, but these deposits are of no commercial importance.
Uranium pitchblende isn't concentrated enough to cause a reaction like that on the instruments.
It would take a deposit of pitchblende richer than anything I've ever heard of to penetrate the lead.
To that which accompanied barium taken from the same ore they called Radium and to the substance which was found among the rare earths of the pitchblende Debierne gave the name Actinium.
Curie, is just as active as radium when first extracted from the pitchblende but its energy soon lessens and finally it becomes inert, hence there has been little experimenting or investigation.
Finally in the ore of pitchblende they found not only one but three substances highly radio-active.
The process of obtaining radium from pitchblendeis most tedious and laborious and requires much patience.
One kilogram of impure radium bromide is obtained from a ton of pitchblende residue after processes continued for about three months during which time, five tons of chemicals and fifty tons of rinsing water are used.
Pitchblende or uraninite is an intensely black mineral of a specific gravity of 9.
To the radio-active substance which accompanied the bismuth extracted from pitchblende the Curies gave the name Polonium.
Like flushing quail in Venus jungles," he said, moving away from the door and down into the hold where the lead boxes filled with uranium pitchblende were stored.
Listen, punk, with a murder charge hanging over our heads, and a couple of million credits' worth of pitchblende in the holds, both of us would do anything!
These veins are veins of pitchblende which are found hardly anywhere in Europe except in the north of Bohemia and which are worked near the little town of Joachimsthal.
I regard the God-Stone as a block of radiferous pitchblende originating from the Joachimsthal lodes.
In the end they extracted from eight tons of pitchblende about half a teaspoonful of something that was a million times more radiant than uranium.
They found a certain kind of pitchblende which was very active, and they analysed tons of it, concentrating always on the radiant element in it.
This discovery naturally led to further investigation, on the assumption that pitchblende contains more than one radioactive substance.
In the chemical analysis ofpitchblende made by Mme.
Among the latter she made use of the composite mineral pitchblende from the mines of Joachimsthal and elsewhere, and found that the radiations from the natural ores are more active than those from pure uranium.
Down in the deepest pitchblende mines, where particles of radium have been hidden away since the creation of the world, they are still found shining with their strange blue light.
The scarcity of the metal will be understood when it is stated that there is far less radium in pitchblende than gold in ordinary sea water.
The result was a photograph, where the black pitchblende appeared light owing to the emanations from the radium contained in it.
Discovery of Radium In a similar manner a barium precipitate was obtained frompitchblende which contained a highly active substance.
The colony on Ganymede was more of a supply depot than a permanent settlement, with one large uranium refinery to convert the pitchblende brought in by the prospectors of the asteroids.
Bull Coxine and Gus Wallace got together after me and Wallace lost our stake hunting for uranium pitchblende in the asteroids and split up.
In 1898 Madam Curie made a careful study of pitchblende to see if these properties belong to it or to some unknown substance contained in it.
In 1896 the French scientist Becquerel observed that the mineral pitchblende possesses certain remarkable properties.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "pitchblende" in a variety of sentences. We hope that you will now be able to make sentences using this word.
