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On Datolite from the Lizard district, Cornwall1

Published online by Cambridge University Press:  14 March 2018

W. F. P. McLintock
W. F. P. McLintock*
Affiliation:
Museum of Practical Geology, London
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Extract

In the course of his official work in the Lizard district, Dr. J. S. Flett collected various samples of minerals which were handed over to me for examination. Two of these specimens proved to be datolite remarkably well crystallized. As this species, now rare in Britain, had not been recorded before from Cornwall, although pseudomorphs of chalcedony after it—the well-known haytorite—are mentioned by Greg and Lettsom from North Roskear mine, Camborne, the facts of its occurrence seemed well worthy of further investigation. Accordingly, in October of last year, Dr. Flett and myself paid a visit to the locality, where we succeeded in obtaining a large amount of the material.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 15 , Issue 72 , September 1910 , pp. 407 - 414
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1910

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Footnotes

1

Communicated by permistdon of the Director of H.M. Geological Survey.

References

Page 407 note 1 Greg, R. P. and Lettsom, W. G., ‘Manual of the Mineralogy of Great Britain and Ireland,’ 1858, p. 231.Google Scholar

Page 407 note 2 Fox, Howard and Teall, J. J. H., ‘Notes on some coast sections at the Lizard’. Quart. Journ. Geol. Soc., 1893, vol. xliv, p. 199 CrossRefGoogle Scholar.

Page 409 note 1 Lowe, H. J., Trans. R. Geol. Soc. Cornwall, 1900, vol. xii, p. 336.Google Scholar

Page 409 note 2 This specimen has since been presented to the Museum by Mr. Reynell.

Page 410 note 1 Ungemach, H., Bull. Soc. franç. Min., 1909, vol. xxxii, p. 402.Google Scholar

Page 413 note 1 Lacroix, A., Bull. Soc. Min. de France, 1885, vol. viii, p. 433 Google Scholar.

Page 413 note 2 Heddle, M. F., ‘Mineralogy of Scotland,’ 1901, vol. ii, p. 63 Google Scholar.

Page 414 note 1 Busz, K., Neues Jahrb. Min., 1899, Beilage-Band xiii, p. 127.Google Scholar