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Contributions to the study of parallel growths of different substances
Published online by Cambridge University Press: 14 March 2018
Extract
Mr. T. V. Barker has lately shown that the parallel growth of isostructural substances upon one another is conditioned by similarity of molecular volume. This very important conclusion invites further investigation from this new point of view, and Professor H. A. Miers suggested to me, while working in his laboratory last summer, that I should make experiments on the parallel growth of sodium nitrate on the pseudo-rhombohedral mineral barytocalcite.
The first experiments, which were made on crystals of barytocalcite in the Oxford collection, were unsuccessful, the crystals employed being small and somewhat impure. Later, I received, from the Museum of Practical Geology in London, some very good and perfectly pure crystals of barytocalcite from Blagilt, near Alston, in Cumberland.
- Type
- Research Article
- Information
- Mineralogical magazine and journal of the Mineralogical Society , Volume 15 , Issue 70 , July 1909 , pp. 232 - 237
- Copyright
- Copyright © The Mineralogical Society of Great Britain and Ireland 1909
References
Page 232 note 1 Mr. Barker's papers are :—
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(1)
(1) ‘Contributions to the theory of isomorphism based on experiments on the regular growth of crystals of one substance on those of another.’ Journ. Chem. Soc., 1906, vol. lxxxix, pp. 1120-1158.
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(2)
(2) ‘On the regular growth of soluble salts on each other.’ Min. Mag, 1907, vol. xiv, pp. 235-257.
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(3)
(3) ‘The question of a relation between parallel growths of crystals and isomorphous miscibility, and the bearing of parallel growths on questions of isomorphism.’ Min. Mag., 1908, vol. xv, pp. 42-53.
See also Zeits. Kryst. Min, 1908, vol. xlv, pp. 1-59.
Page 232 note 2 It is probably the same material which yielded negative results to Mr. Barker.
Page 233 note 1 Mallard, E., ‘Sur l'alstonite et le barytocalcito.’ (Note posthume.) Bull. Soc. franç. Min., 1895, vol. xviii, pp. 7–12.Google Scholar
Page 233 note 2 W. Haidinger (‘Handbuch der Mineralogie,’ 1845, p. 279) described the regular intergrowth of crystals of barytocalcite and calcite. See also Wallerant, F., Bull. Soc. franç. Min., 1902, vol. xxv, pp. 183, 210Google Scholar.
Page 234 note 1 Compare Sommerfeldt, E., ‘Physikalische Kristallographie,’ 1907, p. 106.Google Scholar
Page 235 note 1 This comparison is not altogether satisfactory, and I hope to return to the discussion of the optical properties of barytocalcite and alstonite.
Page 235 note 2 In some cases neither method is exact, according to Wulff, G., Zeits. Kryst. Min., 1907, vol. xlii, p. 558 Google Scholar
Page 235 note 3 Rhedochrosite from the John Reed mine, Alicante, Colorado.
Page 236 note 1 Troost, L., Ann. Chim. Phys., 1856, ser. 3, vol. li, p. 134.Google Scholar
Page 236 note 2 Dannan, F. G. and Burt, B. C., Journ. Chem. Soc., 1903, vol. lxxxiii, p. 335.CrossRefGoogle Scholar
Page 236 note 3 Groth, P., ‘Chemische Kristallographie,’ 1908, Tell ii, p. 207.Google Scholar
Page 236 note 4 Hutchinson, A., Min. Mag., 1903, vol. xiii, p. 210.Google Scholar
Page 237 note 1 Compare Miers, H. A., ‘Some recent research upon the birth and affinities of crystals.’ Science Progress, 1907, vol. ii, pp. 121–134 Google Scholar.