ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] The mineral is metamict, and an analysis by Mr. D. I. Bothwell gave: SiO2 55-6, ThO2 27-6, UO2 2-1, Fe2O3 0-5, CaO 13-7, PbO 0-8 per cent, with traces of A12O3, MgO, MnO, total 100-3 per cent, yielding the formula: (Th,U)(Ca,Fe,Pb)2Si8020 The refractive index and density of the mineral as found ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/190997a0
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