pitchblende


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Related to pitchblende: radium
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Synonyms for pitchblende

a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium

References in periodicals archive ?
Starting in the late Middle Ages, pitchblende was extracted from the Habsburg silver mines in Joachimsthal, Bohemia (now Jachymov in the Czech Republic), and was used as a coloring agent in the local glassmaking industry.
The degree of radioactivity within this interval is highly variable and associated with visible pitchblende mineralization.
11) By mid-May the notebooks reflected that the Curies were hunting for not one but two new elements in pitchblende.
Elegimos para nuestro trabajo al pitchblende, un mineral de uranio que en su estado puro es aproximadamente cuatro veces mas activo que el oxido de uranio.
The Curies set out to investigate pitchblende, a mineral obtained from mines in Austria, which exhibited activity superior to that of pure uranium.
The dominant uranium-bearing mineral in the granitoid-hosted ore zones (veins) below 50 m is pitchblende (Chatterjee et al.
I ground up bits of pitchblende and mixed them with acids, generating brilliant green solutions that fluoresced under my ultraviolet light.
Many rocks and minerals, such as the pitchblende refined by Madame Curie to produce the first samples of radium, are naturally radioactive and emit radiation all the time.
We don't attempt to sequester naturally occurring radioactive pitchblende and similar ores to protect humans and animals from cancers and mutations, nor should we.
They consist of finely disseminated pitchblende, with minor chalcopyrite, pyrite and galena.
These contain quartz and sulphide veins and are characterized by a collection of uranium minerals such as pitchblende, coffinite, uraninite and black U-oxides (parapitchblende) (Arribas, 1962), being the pitchblende usually replaced by sulphides, especially pyrite and melnikovite.
The cataclastites in the central part of the deposit are sometimes enriched in graphite and sulphides, and host uranium mineralization enriched in coffinite, partly also pitchblende.
Pitchblende could be a symbol for Curie's dark and complex life: Embedded in both were elements of extraordinary brilliance and intensity.
LaBine found pitchblende on the lake's eastern shore.