Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-20T05:27:51.087Z Has data issue: false hasContentIssue false
  • English
  • Français

Barium silicates in stratabound Ba-Zn mineralization in the Scottish Dalradian

Published online by Cambridge University Press:  05 July 2018

N. J. Fortey  and
B. Beddoe-Stephens
N. J. Fortey
Affiliation:
Institute of Geological Sciences, 64-78 Gray's Inn Road, London WC1X 8NG
B. Beddoe-Stephens
Affiliation:
Institute of Geological Sciences, 64-78 Gray's Inn Road, London WC1X 8NG
Get access Rights & Permissions [Opens in a new window]

Abstract

Barium feldspar and barian muscovite are major constituents of the Aberfeldy Ba-Zn mineralization. Celsian varies from equigranular to a platy habit in quartz-celsian rock and forms porphyroblasts in schist and marble. Hyalophane is less common. Barian muscovite is a major component of the schist in the mineralized zone. Celsian (> 80 % Cn) and/or hyalophane coexist with muscovite containing c.6% Ba, and c.8.5% Ba was measured in muscovite from one feldspar-free specimen. Cymrite separated from foliated quartz-celsian rock conformed to the formula BaAl2Si2O8·H2O. The rock textures reflect regional metamorphism, but it is believed that the barium silicates are ultimately authigenic in origin. The platy habit of much of the celsian may have been inherited from cymrite formed during the development of tectonic fabrics.

Type
Research Article
Information
Mineralogical Magazine , Volume 46 , Issue 338 , March 1982 , pp. 63 - 72
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1982

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Atherton, M. P., and Smith, R. A. (1979 Geol. Mag. 116, 469–76.CrossRefGoogle Scholar
Aye, F., and Strauss, G. K. (1975 C.R. Acad. Sci. Paris, 281, Serie D, 1935-8.Google Scholar
Bauer, L. H., and Berman, H. (1933 Am. Mineral. 18, 30.Google Scholar
Bjorlykke, K. O., and Griffin, W. L. (1973 J. Sed. Petrol. 43, 461–5.Google Scholar
Bowles, J. F. W. (1975 Rep. Inst. Geol. Sci. 75/9, 14. pp.Google Scholar
Butler, B. C. M. (1967 J. Petrol. 8, 233–67.CrossRefGoogle Scholar
Campbell-Smith, W., Bannister, F. A., and Hey, M. H. (1944 Mineral. Mag. 27, 33–46.Google Scholar
Campbell-Smith, W., Bannister, F. A., and Hey, M. H. (1949 Ibid. 28, 676–81.Google Scholar
Carron, M. K., Mrose, M. E., and Neiser, A. M. (1964 Geol. Soc. Am. Special Paper 82, 26 (abstr.).Google Scholar
Coats, J. S., Smith, C. G., Fortey, N. J., Gallagher, M. J., May, F., and McCourt, W. J. (1980 Trans. Inst. Mining Metall. B, 89, 110–22.Google Scholar
Coats, J. S., Smith, C. G., Fortey, N. J., Gallagher, M. J., May, F., and McCourt, W. J. et al. (1981 Inst. Geol. Sci. Miner. Reconnaissance Rep. No. 40.Google Scholar
Deer, W. A., Howie, R. A., and Zussman, J. (1962 Rock-forming minerals, 4, Longmans, London, 435 pp.Google Scholar
Essene, E. J. (1967 Am. Mineral. 52, 1885–90.Google Scholar
Gallagher, M. J. (1964 Trans. Inst. Mining Metall. 73, 825–40.Google Scholar
Gay, P., and Roy, N. N. (1968 Mineral. Mag. 36, 914–32.Google Scholar
Grout, A., and Gallagher, M. J. (1980 Trans. Inst. Mining Metall. B 89, 130–3.Google Scholar
Gurvich, Y. G., Bogbanov, Y. A., and Lisitsyn, A. P. (1979 Geochem. Int. 16 part 1, 62–79.Google Scholar
Heinrich, E. W., and Levinson, A. A. (1955 Am. J. Sci. 253, 39–43.CrossRefGoogle Scholar
Kashayev, A. A. (1966 Dokl. Acad. Sci. U.S.S.R. 169, 114–16.Google Scholar
Mason, P. K., Frost, M. T., and Reed, S. J. B. (1969 Nat. Phys. Lab. IMS Rep. No. 2.Google Scholar
Page, D. C., and Watson, M. D. (1976 Econ. Geol. 71, 306–27.CrossRefGoogle Scholar
Runnells, D. D. (1964 Am. Mineral. 49, 158–65.Google Scholar
Russell, Sir A. (1946 Mineral. Mag. 27, 147–54.Google Scholar
Segnit, E. R. (1946 Ibid. 27, 166–74.Google Scholar
Russell, Sir A. and Gelb, T. (1970 Austral. J. Ceramic. Soc. 6, 12–18.Google Scholar
Snetsinger, K. G. (1966 Am. Mineral. 51, 1623–39.Google Scholar
Soong, R., and Olivecrona, J. A. (1975 Mineral. Mag. 40, 311–12.CrossRefGoogle Scholar
Spencer, L. J. (1942 Ibid. 26, 231–45.Google Scholar
Yosimura, T. (1939 J. Fac. Sci. Hokkaido (Ser. 4), 313–452.Google Scholar