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The crystal-structure and optical properties of matlockite (PbFCl)

Published online by Cambridge University Press:  14 March 2018

F. A. Bannister*
Affiliation:
Mineral Department of the British Museum of Natural History

Extract

It has recently been shown by W. Nieuwenkamp that matlockite is identical in chemical composition and crystal-structure with artificial lead fluochloride PbFC1. His conclusion is based upon powder photographs of the two substances and a fluorine determination of a specimen of matlockite from Matlock, Derbyshire. The present work was undertaken primarily to check Nieuwenkamp's interesting results. Access to an exceptionally fine suite of matlockite specimens in the British Museum collection made possible single crystal X-ray measurements, accurate optical determinations, and a new chemical analysis.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1934

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References

1.Nieuwenkamp, W., Zeits. Krist., 1933, vol. 86, p. 470. [M.A. 5-475.]Google Scholar
2. Greg, R. P., Phil. Mag., 1851, ser. 4, vol. 2, p. 120.CrossRefGoogle Scholar
3. Greg, R. P. and Lettsom, W. G., Manual of the mineralogy of Great Britain and Ireland. London, 1858, p. 419.Google Scholar
4. Rammelsberg, C., Ann. Phys. Chem. (Poggendorff), 1852, vol. 85, p. 141.Google Scholar
5. Nieuwenkamp, W. and Bijvoet, J. M., Zeits. Krist., 1932, vol. 81, p. 469. [M.A. 5-176.]Google Scholar
6. Nieuwenkamp, W. and Bijvoet, J. M., Zeits. Krist., 1932, vol. 82, p. 157. [M.A. 5-177.]Google Scholar
7. Larsen, E. S., Bull. U.S. Geol. Survey, 1921, no. 679, p. 108.Google Scholar
8. Ruer, R., Zeits. Anorg. Chem., 1906, vol. 49, p, 365.Google Scholar
9. Dickinson, R. G. and Friauf, B.. Journ. Amer. Chem. Soc., 1924, vol. 46, p. 2457. [M.A. 2-514.]CrossRefGoogle Scholar
10. Brækken, H., Zeits. Krist., 1932, vol. 83, p. 222. [M.A. 5-176.]Google Scholar
11. Ketelaar, J. A. A., Zeits. Krist., 1932, vol 84, p. 62. [M.A. 5-311.]Google Scholar
12. Kolderup, N. H., Bergens Museums Aarbok, 1925, for 1924-25, Naturvid. ræk., no. 2, p. 10. [M.A. 3-340.]Google Scholar
13. Specer, L. J., Min. Mag., 1923, vol. 20, p. 67.Google Scholar
14. Herbert Smith, G. F., Min. Mag., 1899, vol. 12, p. 102.Google Scholar
15. Lacroix, A., Compt. Rend. Acad. Sci. Paris, 1896, vol. 123, p. 956.Google Scholar
16. Lacroix, A. and A. De Schulten, , Bull. Soc. Franç. Min., vol. 31, p. 85.Google Scholar