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Additional notes on Wood-tin
Published online by Cambridge University Press: 14 March 2018
Extract
In my previous papers I described and illustrated several examples of the concentrically banded and radiated varieties of cassiterite known as ‘wood-tin’, and stated that one very constant character of this variety was its rather remarkable opacity as compared with ordinary cassiterite, which is indeed somewhat exceptionally transparent considering its (often) deep coloration. I also noted the frequent occurrence of specimens of wood-tin encrusted with more or less distinct crystals of cassiterite, or traversed by fissures filled with such crystals, as indicating successive formation.
- Type
- Research Article
- Information
- Mineralogical magazine and journal of the Mineralogical Society , Volume 16 , Issue 73 , May 1911 , pp. 30 - 34
- Copyright
- Copyright © The Mineralogical Society of Great Britain and Ireland 1911
References
Page 30 note 1 Collins, J. H., ‘On some Cornish tin-stones and tin-capels,’ Mineralogical Magazine, 1880, vol. iv, pp. 1–20, 103-116CrossRefGoogle Scholar, with 12 plates; 1883, vol. v, pp. 121-180. Reprinted, 54 pp., with 12 plates, Truro, 1888.
Page 30 note 2 For these photographs I am indebted to my friend Mr. Jos. M. Coon of St. Austell.
Page 31 note 1 Flett, J. S. and Scrivenor, J. B., Mem. Geol. Survey, ‘Geology of Nowquay,’ 1906, pp. 76, 77Google Scholar.
Page 32 note 1 Pirsson, L. V., Amer. Journ. Sci., 1891, sar. 3, vol. xlii, p. 407 Google Scholar. See also Genth, F. A., Proc. Amer. Phil. Soc., 1887, vol. xxiv, p. 28 Google Scholar.
Page 33 note 1 A very fine specimen of dark colour, probably from Mexico, has recently heen acquired by the British Museum as a bequest from the late Mr. F. Tendron, and there is a very similar specimen in the Ludlam collection at the Museum of Practical Geology in Jermyn Street, London.
Page 33 note 2 Botryoidal or stalactitic forms of all these substances were exhibited by the author in illustration of his paper.
Page 33 note 3 See Collins, J. H., ‘On the assay of tin and on the solubility of cassiterite,’ Trans. Inst. Milling and Metall., 1903-4, vol. xiii, pp. 485–486 Google Scholar.