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Baddeleyite from Ceylon

Published online by Cambridge University Press:  14 March 2018

G. S. Blake  and
G. F. Herbert Smith
G. S. Blake
Affiliation:
Scientific and Technical Department of the Imperial Institute
G. F. Herbert Smith
Affiliation:
Mineral Department of the British Museum
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Extract

During recent years a systematic survey of the mineral resources of Ceylon has been in progress, in connexion with which a large number of specimens have been sent to the Imperial Institute for examination. In 1905 several cases containing coarse gravel from the streams of the gem-district of Balangoda were received. The constituent minerals were mainly zircon, tourmaline, corundum, spinel, ilmenite, together with small quantities of geikielite, fergusonite, and other rare-earth minerals. Last summer during the examination of these gravels one of the authors found three black crystals witll unusually brilliant faces. The apparently monoclinie form and the general physical characters at once suggested the crystallized native zirconia, baddeleyite, and this conjecture was confirmed by the goniometrical measurements and the chemical analysis.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 14 , Issue 67 , September 1907 , pp. 378 - 384
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1907

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References

Page 378 note 1 Crook, T. and Jones, B. M., ‘Geikielite and the ferro-magnesian titanates.’ Min. Mag., 1906, vol. xiv, pp. 160-6.CrossRefGoogle Scholar

Page 378 note 2 Nature 1892, vol. xlvi, p. 420. Fletcher, L., ‘On baddeleyite (native zirconia), a new mineral, from Rakwana, Ceylon.’ Min. Mag., 1893, vol. x, pp. 148-60CrossRefGoogle Scholar.

Page 379 note 1 Hussak, E., ‘Über Brazilit.’ Neues Jahrb. Min., 1892, vol. ii, pp. 141-5Google Scholar ; ‘Ueber den Baddeleyit (syn. Brazilit) von der Eisenmine Jacupiranga in Säo Paulo.’ Min. Petr. Mitt. (Tschermak), 1895, vol. xiv, pp. 395-406. The name ‘brazilite’ was withdrawn by Dr. Hussak.

Page 380 note 1 Min. Petr. Mitt. (Tsehermak), 1894, vol. xiv, p. 399.

Page 384 note 1 Annales chim. phys., 1860, sér. 8, vol. lx, pp. 266-7.