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On the Development of a Lamellar Structure in Quartz-crystals by Mechanical means

Published online by Cambridge University Press:  14 March 2018

John W. Judd
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Extract

As long ago as 1816, Brewster showed that many crystals have a lamellar structure developed in them by pressure, and his observations became the starting point of a long series of very valuable researches. Reuseh proposed that the planes along which such structures are developed by mechanical means should be called "Gleitflächen" (gliding-planes), and he, Pfaff, and other mineralogists have investigated a number of curious cases of the kind. Baumhauer in 1879 showed that the lamellar structure could be brought into existence, in the ease of calcite, by simply inserting s knife-blade in a definite direction into cleavage fragments of the mineral, and his observations were confirmed in the following year by Brezina.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 8 , Issue 36 , May 1888 , pp. 1 - 9
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1888

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References

page 1 note 1 Phil. Tran. 1816, pp. 156-178.

page 1 note 2 Pogg. Ann. CXXXII. (1867), p. 441.

page 1 note 3 Zeitsch. Kryst. III. (1879), p. 688.

page 1 note 4 Ibid. IV. (1880), p. 518.

page 2 note 1 Untersuchungen über die Enstehung der altkrystallinisehen Schiefergesteine. Bonn, 1884, p. 196.

page 2 note 2 Neues Jahrb.für Min. &c. 1883, II. p. 97.

page 2 note 3 Zeitsch. Krystall. ix. (1884), pp. 333-353.

page 2 note 4 Quart. Journ. Geol. Soc. Vol. XLI. (1885), pp. 354-358.

page 2 note 5 Mineralogical Magazine, Vol. VII. (1886), p. 81.

page 2 note 6 Trans. Roy. Soc. Edin. Vol. IX. p. 159. This paper was read Nov. 15th, 1819, but the observations on which it is based are said to have been made in 1817.

page 2 note 7 Darstellung der Farbenlehre (1853), p. 251.

page 2 note 8 Sitzungsb. der Wiener Akad. (1854), p. 401.

page 2 note 8 Neues Jahrh für Min. &c. (1883), Vol. I. p. 62.

page 2 note 10 Abhandlungen der Akad. der Wissenschaften, Berlin, 1844, p. 217.

page 3 note 1 Ann. Chim. et Phys. XIV. (1855), p. 129.

page 3 note 2 Ber. Akad. der Wissenschaften zu Wien. XV. (1855), p. 59.

page 3 note 3 Loc. cit. p. 286.

page 3 note 4 Zeits. fur Kryst. V. (1881), p. 1.

page 3 note 5 Ibid. X. (1885), p. 475.

page 6 note 1 Quart. Journ. Geol. Soc. Vol. XLI. (1885), p. 365, Pl. X., Fig. 1.

page 7 note 1 Zeitschr.fur Kryst. &c. Vol. II. (1886), p. 608.