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Ilmenite from Jacupiranga, Brazil

Published online by Cambridge University Press:  14 March 2018

G. F. Herbert Smith
G. F. Herbert Smith*
Affiliation:
Mineral Department of the British Museum
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Extract

During the summer of this year certain crystals of zirkelite from Ceylon were entrusted to the author for crystallographical investigation, and in that connexion the specimens placed under this species in the British Museum collection were examined for the sake of comparison. The whole of the latter specimens come from Jaeupiranga in São Paulo, Brazil: some of them had been presented by Dr. E. Hussak and formed part of the material on which he and Dr. G. T. Prior conducted their investigation which led to the first discovery of zirkelite, while the remainder were purchased subsequently. The latter included a lot of small, brilliant crystals (numbered 86034 in the General Register) which differed so markedly in lustre from the other crystals as to suggest that they had been incorrectly determined.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 14 , Issue 66 , February 1907 , pp. 258 - 260
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1907

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References

Page 258 note 1 Min. Mag., 1895, vol. xi, pp. 86-88.

Page 258 note 2 Min. Petr. Mitt. (Tschermak), 1895, vol. xiv, p. 407.

Page 258 note 3 The notation adopted in Dana's ‘System of Mineralogy,’ sixth edition, 1892 ; and used also by Dr. Hussak.

Page 259 note 1 Min. Mag., 1906, vol. xiv. pp. 184-186.

Page 259 note 2 Loc. cit., p. 408.

Page 259 note 3 Calculated from the clement of Koksharov, N. I., ‘Materiallen zur Mineralogie Russlands,’ 1870, vol. vi, p. 857 Google Scholar, which is adopted by Dana, ‘System of Mineralogy,’ sixth edition, 1899, p. 917.