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VIII. On the Optical Properties of Muriate of Soda, Fluate of Lime, and the Diamond, as exhibited in their action upon Polarised Light

Published online by Cambridge University Press:  17 January 2013

David Brewster
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Extract

It has long ago been remarked by the Abbé Hauy, that the property of Double Refraction is not possessed by any of those crystals the form of whose integrant molecule is distinguished by its symmetry, such as the Cube and the Regular Tetraedron. This class of minerals comprehends Fluate of Lime, Muriate of Soda, Spinelle Ruby, Muriate of Ammonia, Alum and the Diamond; and though M. Hauy had examined only a very small number of doubly refracting crystals, yet, with the exception of the Diamond, which I have found in many cases to possess the property of Double Refraction, his remark was confirmed by the experiments of Malus, Biot and myself, who considered all the crystals of this class as exercising no more action upon polarised light than a mass of water.

Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 8 , Issue 1 , 1818 , pp. 157 - 164
Copyright
Copyright © Royal Society of Edinburgh 1818

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References

page 158 note * Sur la loi de la Refraction extraordinaire dans les cristaux diaphanes. Mém. de l'Institut, 1809.

page 160 note * See Phil. Trans. 1815, p. 29.

page 161 note * See Phil. Trans. 1815, p. 32, 33.; and 1816, p. 172, 173.