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On an occurrence of Minerals at Haddam Neck, Connecticut, U.S.A. (With Plate IV.)

Published online by Cambridge University Press:  14 March 2018

H. L. Bowman
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Extract

In the summer of 1896 the Oxford Museum was enriched by a fine series of about eighty mineral specimens from a newly opened quarry at Haddam Neck in Connecticut, which were kindly presented by Mr. Ernest Schernikow of New York.

The species included in the series are green and pink tourmaline, albite, microcline, green and pink apatite, brown fluor, beryl, quartz, cookeite, lilac lepidolite, greenish-white muscovite, and a peculiar pink fibrous variety of the same mineral. To these must also be added, as occurring at the same place, green fluor, microlite, and columbite.

The locality is described as Haddam Neck, a village opposite to Haddam, on the other (eastern) bank of the Connecticut River, which is here about half a mile wide.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 13 , Issue 60 , May 1902 , pp. 97 - 121
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1902

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References

Page 99 note 1 Amer. Journ. Sci., 1894, ser. 3, vol. xlviii, p. 31.

Page 100 note 1 Such a box may conveniently be made of a piece of 4 in. lead pipe, about 4 in. long, with the ends filed true and closed by flat plates of sheet lead. The crucible is covered with a loose roof of platinum foil to protect the silica from any particles falling from the lid. of the box.

Page 101 note 1 Proc. Amer. Acad. Arts and Sci., 1886, new ser., vol. xiv, p. 177; Bull. U. S. Geol. Survey, 1887, no. 42, p. 73 ; Chem. News, i887, vol. lv, p. 18, et seq.

Page 102 note 1 Min.-Chem., 1875, p. 514.

Page 102 note 2 Amer. Journ. Sci, 1857, ser. 2, vol. xxiii, p. 180.

Page 102 note 3 The convergence of the faces is somewhat exaggergted in the figure.

Page 103 note 1 Zelts. Kryst. Min., 1886, vol. xii, p. 1.

Page 104 note 1 There seems no reason to doubt that the star belongs to a percussion- and not to a pressure-figure, as its form agrees exactly with the type figured by Max Bauer (Zeits. Deutsch. geol. Gesells., 1874, vol. xxvi, pl. II, fig. 2, and copied in Hintze's Mineralogy, vol. ii, p. 518, fig. 236).

Page 105 note 1 For the muscovite-centre of the zoned mica from Schüttenhofen, the axial angle (as given by Scharizer) is 2E = 70°=74°.

Page 108 note 1 Mr. Spencer informs me (January, 1902) that the pink specimens in the British Museum have faded very markedly during four years' exposure in a glass case.

Page 109 note 1 Some specimens in the British Museum attain a length of 5 inches, and Kunz mentions and figures (18th Ann. Rep. U. S. Geol. Survey, 1896-7 (1897), part v, pp. 1183, 1204; 20th Rep., 1898-9 (1899), part vi (2), plate I, fig. E) a perfect crystal 10 in. long × 1 in. diam. in Mr. Bement's Collection.

Page 109 note 1 Ann. Phys. Chem. (Poggendorff), 1836, vol. xxxix, p. 285 ; 1843, vol. lix, p. 357.

Page 110 note 1 V. von Worobieff has recently found in the course of his exhaustive study of tourmaline (Zeits. Kryst. Min., 1900, vol. xxxiii, p. 419) a large number of exceptions to Rose's rule, so that the latter can no longer be said to he of general application. The number of forms on tbe crystals from Haddam Neck is too small to permit the determination of the polarity by the rules proposed by v. Worobieff, but the occurrence of o {1111} at the antilogous pole is in accordance with his observations.

Page 111 note 1 Amer. Journ. Sci, 1899, ser. 4, vol. vii, p. 107 ; and Zelts. Kryst. Min., 1899, vol. xxxi, p. 833.

Page 111 note 2 19th Ann. Rep. U. S. Geol. Survey, 1897-8 (1898), part vi, p. 505.

Page 112 note 1 Edinb. Phil. Journal, 1824, vol. x, p. 148, and pl. v, fig. 16 ; Isis, 1824, p. 852.

Page 112 note 2 Ber. Akad. Wien, 1870, vol. lxii (2), p. 754. Dana (System, 1892, p. 768, Ref.) mentions k {4150} as having been questioned by Schrauf. The latter was however only referring to Haidinger's form (k′{1430}), though his symbols cover both k and k′.

Page 112 note 3 Manuel de Min., vol. ii, p. 434, and pl. lxxiii, figs. 412, 443.

Page 113 note 1 Amer. Journ. Sci., 1884, ser. 3, vol. xxvii, p. 480.

Page 113 note 2 Min. d. Schwelz, 1866, p. 353.

Page 113 note 3 Neues Jahrb. Min., 1871, p. 485

Page 117 note 1 Mr. Lazard Cahn, through whom the specimens were obtained, informs me that they were tested by Prof. Penfield and found to contain caesium.

Page 118 note 1 Amer. Journ. Sci., 1893, ser. 8, vol. xlv, p. 393.

Page 118 note 2 Ibid. 1866, set. 2, vol. xli, p. 247.

Page 120 note 1 Amer. Journ. Sci., 1822. ser. 1. vol. iv. p. 53 ; 1823, ser. 1. vol. vi, p. 220.