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The ‘baddelyite from Alnö’—an error

Published online by Cambridge University Press:  14 March 2018

H. von Eckermann
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Extract

In most mineralogical text-books the nepheline-syenite area of Alnö, on the east coast of Sweden, is given as one of the few localities of the rare mineral baddelyite, ZrO2. This information is based on a communication by E. Hussak, who claimed to have discovered the mineral in jacupirangitic varieties of the Alnö nepheline-syenites.

The present writer, being engaged with a petrological and mineralogical revision of the Alnö occurrence, earlier described by A. G. Högbom in his classic memoir of 1895, has in vain looked for the presence of baddelyite. Hussak claimed to have isolated by means of Klein's solution 0·38 gram of pure baddelyite from 100 grams of rock, as well as to have obtained characteristic ZrO2 crystals inn borax bead test. Repeated isolation tests with Clerici's solution on samples from various localities within the Alnö area, however, furnished nothing but residues of melanitic garnet.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 25 , Issue 166 , September 1939 , pp. 413 - 414
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1939

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References

page 413 note 1 Hussak, E., Neues Jahrb. Min., 1898, vol. ii, pp. 228–229.Google Scholar

page 413 note 2 Högbom, A.G., Geol. För. Förh. Stockholm, 1895, vol. 17, pp. 100–158, 214–248.CrossRefGoogle Scholar