单词 | bröggerite |
释义 | bröggeriten. Mineralogy. A thorian variety of uraninite. ΘΚΠ the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > rutile and uranite groups A02 > thorianite thorina1831 thoria1847 bröggerite1884 thorianite1904 1884 Jrnl. Chem. Soc. 46 1102 The mineral, which has been named bröggerite by the author [sc. Blomstrand], is closely related to cleveite. 1901 Jrnl. Chem. Soc. 80 ii. 396 The specimen of bröggerite..from which radioactive lead was obtained..had a hardness 5·5 and a sp. gr. 9·06 at 15°. 1951 J. R. Partington Gen. & Inorg. Chem. (ed. 2) xxvi. 759 Cleveite and bröggerite are varieties richer in thorium and rare earths. This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2018). < n.1884 |
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