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Notes on British barytes

Published online by Cambridge University Press:  14 March 2018

Jessie M. Sweet
Jessie M. Sweet*
Affiliation:
Mineral Department, British Museum of Natural History
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Extract

When the slip catalogue of the barytes specimens in the British Museum collection was in the course of preparation, a few observations were made which may be of sufficient importance to place on record.

The lists of localities of the barium minerals, barytes, witherite, alstonite, and barytocalcite, in the collection show that rather more than half of the specimens (573 out of 975) come from the British Isles. Hence it would seem that there is a special concentration of these minerals in this part of the world. Possibly this is fictitious, as the collection cannot be considered to be completely representative.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 22 , Issue 129 , June 1930 , pp. 257 - 270
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1930

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References

page 257 note 1 Imp. Min. Res. Bureau, Statistical Summary, London, 1921 and 1929.

page 258 note 1 J. A. Smythe, Minerals of tile North Country. The Vasculum, Newcastle-upon-Tyne, 1922, vol. 8, p. 91. [Min. Abstr., vol. 3, p. 24.]

page 258 note 2 Mem. Geol. Survey, Special Reports on the Mineral Resources of Great Britain, Barytes and witheritc, 3rd edition, 1922, vol. 2, p. 64.

page 258 note 3 Holmes, A. and Harwood, H. F., Min. Mag., 1928, vol. 21, p. 530.CrossRefGoogle Scholar

page 260 note 1 Min. Abstr., vol. 2, p. 60.

page 261 note 1 3rd edition, 1922, vol. 2 (Barytes and witherite); 2nd edition, 1917, vol. 4 (Fluorspar).

page 261 note 2 Smythe, J. A., The Vasculum, Newcastle-upon-Tyne, 1928, vol. 8, pp. 90, 113Google Scholar and 1927, vol. 14, pp. 15, 16.

page 263 note 1 Collected by Dr. L. J. Spencer, 1909.

page 265 note 1 These mines are situated close to the Frizington railway station and are now amalgamated.

page 265 note 2 L. J. Spencer, Min. Mag., 1921, vol. 19, p. 266, and pl. 8, fig. 11.

page 266 note 1 See, for example, the section ‘Colour of minerals’ in Min. Abstr., vol. 1, p. 227 ; vol. 2, p. 491 ; vol. 3, p. 115 ; vol. 4, p. 251.

page 266 note 2 Sowerby, J., British Mineralogy, 1811, vol. 4, p. 117 (tab. 363).Google Scholar

page 268 note 1 Letters and indices as in Dana (1892) with the axial ratios a:b:c = 0-8152 : 1:1-3136 of R. Helmhacker (1872).

page 270 note 1 R. Helmhacker, Denkschr. Akad. Wiss. Wien, 1872, vol. 32, part 2, pp. 34, 36, and pl. 2, figs. 15, 17, 21.

page 270 note 2 A. Lévy, Description d'une collection de minéraux formée par M. H. Heuland 1837, vol. 1, p. 200, no. 69, and pi. 16, fig. 14.

page 270 note 3 A crystal from ‘Cumberland’ figured by F. J. Wiik, Öfv. Finska Vet. Soc. Forh., 1884, vol. 26 (for 1883-4), p. 112, fig. 1, is possibly from the Frizington district. The figure shows curved lines of growth on the d (102) faces.