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Chabazite and assodated minerals from County Antrim1

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

Eight years ago (in 1907) Mr. F. N. Ashcroft, who for many years has devoted much of his leisure to bringing together choice specimens of the species included in the zeolitic group of minerals, turned his attention to the specimens occurring in the cavities of the basalt of Co. Antrim. He was fortunate enough to secure the services of Mr. Robert Bell, of Belfast, ill his quest, and between them they have searched many of the quarries and other places likely to yield good specimens of these minerals. Some of the early specimens obtained through Mr. Bell, which, however, did not include any chabazite, were exhibited by Mr. Ashcroft at the anniversary meeting of the Society, on November 12, 1907.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 17 , Issue 82 , April 1916 , pp. 274 - 304
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1916

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Footnotes

With Topographical Notes by F. N. Ashcroft, M.A., F.G.S., and Chemical Analyses by G. T. Prior, M.A., D.Sc., F.R.S., Keeper of Minerals, British Museum.

2

Formerly F. N. A. Fleischmann.

1

Communicated by permission of the Trustees of the British Museum.

References

page 274 note 3 The following were the papers read before the Society : 'On zeolites from the neighbourhood of Belfast,' by F. N. A. Fleisehmann, January 21, 1908 ; 'Phacolite from near Belfast,' by G. F. Herbert Smith, June 7, 1910 ; 'On the zeolites from Killyflugh and White Head, County Antrim,' by G. F. Herbert Smith and F. N. A. Fleisehmann, March 12, 1912 ; 'On gmelinite and chabazite from Co. Antrim,' by G. T. Prior, March 17, 1914.

page 276 note 1 According to the Home Office List of Quarries for 1918, published in 1914, this quarry is owned by Messrs. O. Gregg & Sons, Strathkeen, Larne.

page 277 note 1 J. Strachany, Proc. Belfast Naturalists' Field Club, 1908, ser. 2, vol. vi, p. 92, records the occurrence of natrolite at Whitehead, but does not specify the quarry.

page 280 note 1 According to the Home Office List of Quarries for 1913, published in 1914, this quarry is owned by Mr. S. Herbison, of Killyflugh, by whom it is worked for road-metal.

page 282 note 1 Mr. Robert Bell, the collector, may be seen standing in the cutting.

page 282 note 2 According to the Home Office List of Quarries for 1918, published in 1914, this quarry is owned by the Giant's Causeway Columnar Basalt Co., Portrush. The basalt of the quarry, part of which is finely columnar in structure, belongs to the Upper, while that exposed in the cutting belongs to the Lower Basalt Series. At the base of the rock-face and again just above an old iron-mine adit, a few yards to the cast of the quarry~ a bed of lignite is visible.

page 283 note 1 'tiré'un mot grec, qui désignoit une eertainc espbce de pierre,' Journ. d'Hist, nat, 1788, vol. ii, p. 181.Google Scholar

page 283 note 2 R. J. Haüy, 'Traité de Minéralogie,' 1801, vol. iii, p. 176.Google Scholar

page 283 note 3 This angle was determined by means of the contact-goniometer, and differs by about a degree from the accepted value, viz. 85° 14', which was given by W. Phillips in his 'Mineralogy,' 3rd edition, 1823, p. 138.

page 283 note 4 A. Breithaupt, Neues Jahrb. Min, 18367 pp. 653, 657.

page 283 note 5 A. Lévy, Ann. Phil., 1825, new ser., vol. x, p. 861.

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page 283 note 7 D. Brewster, ibid., p. 332.

page 283 note 8 F. Tamnau, Neues Jahrb. Min., 1836, p. 658.

page 283 note 9 Breithaupt, A., 'Vollstädiges Handbuch der Mineralogie,' 1847, vol. iii, p. 416.Google Scholar

283 l0 J. F. L. Hausmann, 'Handbuch der Mineralogie,' 1847, pp. 780, 1600.

page 283 note 11 G. Rose, 'Krystallo-chem. Mineralsystem,' 1852, pp. 97, 99, 102.

page 283 note 12 A. Streng, 'Ber. Oberhess. Ges. Nat.- Heilkunde, 1877, pp. 74-123.

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page 284 note 2 Goldschmidt, V., 'Krystallographischo Winkeltabollen,' 1897, p. 91. The forms of gmelinite are included under chabazite (cf. p. 406). See also 'Atlas der Krystallformen,' 1918, vol. ii, p. 125.Google Scholar

page 287 note 1 W. Phillips, 'Mineralogy,' 3rd edition, 1823, p. 138.

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page 289 note 1 Brooke, H. J., Phil. Mug., 1837, vol. x, p. 278.Google Scholar

page 298 note 1 Foote, H. W. and Bradley, W. M., Amer. Journ. Soc., 1911, vol. xxxi, p. 25, and 1912, vol. xxxiii, pp. 433 and 439.Google Scholar

page 298 note 2 Schaller, W. T., Journ. Washington Acad. Sci., 1911, vol. i, p. 109.Google Scholar

page 298 note 3 Bowen, N. L., Amer. Journ. Sci., 1912, vol. xxxiii, p. 49.CrossRefGoogle Scholar

page 299 note 1 Clarke, F. W. and Steiger, O., Amer. Journ. Sci., 1899, vol. viii, p. 251.Google Scholar

page 299 note 2 Doelter, C., Neues Jahrb. Min., 1890, vol. i, p. 188.Google Scholar

page 299 note 3 F. W. Clarke and G. Steiger, loc. cit.