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Hamlinite, Florencite Plumbogummite (Hitchcockite), Beudantite and Svanbergite, as members of a natural group of minerals

Published online by Cambridge University Press:  14 March 2018

G. T. Prior
G. T. Prior*
Affiliation:
Mineral Department of the British Museum
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Extract

In mineralogical literature there appears to be a tendency to overestimate the degree of exactness attainable in the chemical analysis of minerals. When it is considered how impossible in the majority of eases it is to obtain absolutely pure material for analysis, and how imperfect even in these days are some of the methods of chemical separation employed, for the determination of a formula any great reliance in the figures to the right of the decimal point in the percentages obtained is scarcely justified in the case of analyses made on small amounts (less than half a gram) of material.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 12 , Issue 57 , July 1900 , pp. 249 - 254
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1900

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References

page 249 note 1 It is to be regretted that in the published descriptions of mineral analyses these data have been so often omitted.

page 250 note 1 On the mutual zelations of florencite and hamlinite, see preceding paper (p. 247).

A correction has been issued for this article:

Errata