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Schultenite, a new mineral, from South-West Africa

Published online by Cambridge University Press:  14 March 2018

L. J. Spencer  and
E. D. Mountain
L. J. Spencer
Affiliation:
Mineral Department, British Museum (Natural History)
E. D. Mountain
Affiliation:
Mineral Department, British Museum (Natural History)
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Extract

Baron A. De Schulten, a political refugee from Finland, worked during the latter part of his life in the chemical laboratories of the Sorbonne in Paris. There he prepared in a crystallized form number of minerals and compounds analogous to them. These were determined crystallographlcally and compared in isonlorphous series. For example, having obtained crystals of artificial monetite, CaHPO4, he then proceeded to prepare the corresponding compounds in which strontium, barimn, or lead take the place of calcium, and arsenic the place of phosphorus. In this series he determined the crystallographic constants and optical data for CaHPO4, SrHPO4, BaHPO4, PbHPO4, SrHAsO4, and PbHAsO4. Crystals of CaHAsO4 were also obtained, but they were too small tbr measurement. Any of these compounds might be expected to occur in nature, but hitherto only monetite has been found as a mineral.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 21 , Issue 115 , December 1926 , pp. 149 - 155
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1926

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References

page 149 note 1 August Benjamin Friherro af Schultén (1856-1912); obituary notice, Min. Mag., 1913, vol. 16, p. 38.

page 149 note 2 A. de Schulten, Reproduction artificiello de la monetite. Bull. Soc. Franç;. Min., 1901, vol. 21, pp. 323 326.

Rocherches sur le phosphate dicaleique. Reproduction artificielle de la brushite. Reproduction de la monetite par un nouveau precede. Ibid., 1903, vol. 26, pp. 11–1.

page 149 note 3 A. de Schulten, Reproduction artificielle de monétites de baryum, de plomb et de strontium et do monétites arséniées de plomb ot de strontium. Ibid., 1904, vol. 27, pp. 109–123. (monétite arséniée de plomb, p. 113).

page 150 note 1 H. Goguel, Contribution à 1'étude des arséniates et des antimoniates cristallisés préparés par voie humide. Mém. Soc. Sci. Bordeaux, 1895, vol. 1, pp. 83–157. (Orthoarséniate diplombique, p. 135).

page 150 note 2 McDonnell, C. C. and Smith, C. M., Journ. Amer. Chem. Soc, 1916, vol. 38, p. 2030 Google Scholar. A summary of the chemical literature is there give.

page 154 note 1 Groth, P., Chem. Kryst., 1908, vol. 2, p. 822 Google Scholar.

page 155 note 1 Specific gravity of the artificial crystals 6.076 (Schulten, 1904), 6.053 (McDonall and Smith, 1916).