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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

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
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.