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On Hopeite and other zinc phosphates and associated minerals from the Broken Hill mines, North-Western Rhodesia

Published online by Cambridge University Press:  14 March 2018

L. J. Spencer
L. J. Spencer*
Affiliation:
Mineral Department of the British Museum
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Extract

The new and remarkable mineral locality known as Rhodesia Broken Hill is situated in North-Western Rhodesia, at a distance of about 300 miles to tile north-east of tile Victoria Falls, and at the present terminus of the Cape to Cairo Railway. The outcrop of lead and zinc ore which occurs here was accidentally discovered in January, 1902, by Mr. T. G. Davey, while he was prospecting the country for copper, Rising out of the flat surrounding country is a series of low hills or kopjes, the largest of them being about 90 feet in height ; and these consist almost entirely of oxidized ore. The surrounding rocks are mainly crystalline limestones with some beds of sandstone, conglomerate, and phyllite.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 15 , Issue 68 , April 1908 , pp. 1 - 38
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1908

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References

Page 2 note 1 A preliminary account of these remains has been publlshed by Mennell, F. P. and Chubb, E. C., Geol. Mag., 1907, dec. 5, vol. iv, pp. 443–448 CrossRefGoogle Scholar. A paper on the cave deposits prepared by Mr. Franklin White for the Rhodesia Scientific Association was very kindly sent to me by the author in typescript.

Page 3 note 1 Des Cloizeaux, A., ‘Manuel de Minéralogie,’ 1893, vol. ii, p. 516 Google Scholar.

Page 3 note 2 A specimen in the Turner collection was so labelled, with a figure of a crystal, in the handwriting of Haüy (Brewster, 1824) ; and there also is an isolated crystal in the Haiiy collection in the Museum d'Histoire Naturelle at Paris (Des Cloizeaux, 1879). There is no mention of the mineral in Haüy's ‘Traité de Minéralogie’ (2nd edit., 1822).

Page 3 note 3 Debray, H., Ann. Chimie et Physique, Paris, 1861, ser. 3, vol. lxi, p. 436 Google Scholar.

Page 3 note 4 Heintz, W., Ann. Chemie u. Pharmacie, 1867, vol. cxliii, p. 356 CrossRefGoogle Scholar.

Page 3 note 5 Skey, W., Trans. New Zealand Inst., 1869, vol. ii, p. 146 Google Scholar ; Chem. News, 1870, vol. xxii, p. 61

Page 4 note 1 de Schulten, A., Bull. Soc. Chim. Paris, 1889, ser. 3, vol. ii, p. 300 Google Scholar.

Page 4 note 2 Demel, W., Sitz.Ber. Akad. Wiss. Wien, math.-naturw. Cl., 1879, vol. lxxix, Abth. II, p. 649 Google Scholar ; Ber. Deutsch. chem. Ges., 1879, Jahrg. xii, p. 1171 ; compare abstract in Zeits. Kryst. Min., vol. v, p. 653.

Page 13 note 1 Termier, P., Bull. Soc. franç. Min., 1898, vol. xxi, p. 148 Google Scholar ; 1900, vol. xxiii, p. 50 ; abstracts in Min. Mag., vol. xii, p. 215, vol. xiii, p. 207.

Page 15 note 1 Buttgenbach's determination was made under the microscope through the prism s and is clearly of no value.

Page 15 note 2 The single specimen of hopeite from Altenberg in the British Museum collection shows only four minute crystals.

Page 18 note 1 By difference: the zinc oxide was tested and found to be free from phosphoric acid.

Page 18 note 2 The name parahopeite appeared in the report of the Mineralogical Society's meeting of November 12, 1907, as given in ‘Nature’, 1907, vol. lxxvii, p. 143.

Page 22 note 1 The name tarbuttite first appeared in ‘Nature’, 1907, vol. lxxvi, p. 215, in the report of the Mineralogical Society's meeting of June 11, 1907 ; and was also given in my list of new mineral names in Min. Mag., 1907, vol. xiv, p. 411.

Page 32 note 1 Letters and indices as given in Dana's ‘System of Mineralogy’, 6th edit., 1892.

Page 36 note 1 Letters and indices as given in Dana's ‘System of Mineralogy’, 6th edit., 1892.