Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-22T18:32:23.792Z Has data issue: false hasContentIssue false
  • English
  • Français

Willemite from the Ilímaussaq alkaline Intrusion

Published online by Cambridge University Press:  05 July 2018

John Metcalf-Johansen
John Metcalf-Johansen*
Affiliation:
Department of Physics, University of Warwick, Coventry
Get access Rights & Permissions [Opens in a new window]

Summary

During the summer of 1967 willcmite was found for the first time in the Ilímaussaq alkaline intrusion, South Greenland. The willemite occurs in an albitite together with aegirine/acmite, albite, analcime, arfvedsonite, apatite, chkalovite, hemimorphite, microcline, monazite, natrolite, naujakasite, neptunite, sphalerite, and polylithionite. Analytical, optical, and X-ray data were obtained from the willemite. Willemite from a calcite vein at Franklin Furnace, New Jersey, and from a quartz vein at Mussartût, South Greenland, were also examined.

One of the willemite crystals from Ilimaussaq was a trilling on <100>. This is the first time willemite has been found as a trilling.

Type
Research Article
Information
Mineralogical Magazine , Volume 41 , Issue 317 , March 1977 , pp. 71 - 75
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1977

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

Arzruni, (A.), 1874. Ann. Phys. Chem. (Poggendorff), 152, 281.Google Scholar
Baggild, (O. B.), 1953. Medd. Grønland, 149, no. 3, 184–5.Google Scholar
Lonsdale, (K.), 1965. International Tables for X-ray Crystallography, Kynoch Press, 3.Google Scholar
Micheelsen, (H.), 1957. Medd. Dansk Geol. Forn. 13, 177–91.Google Scholar
Palache, (C.), 1935. U.S. Geol. Surv. Prof. Pap. 180, 1–135.Google Scholar
Petersen, (O. V.), 1967. Medd. Grønland, 181, no. 6, 1–18.Google Scholar
Pough, (F. H.), 1940. Amer. Min. 25, 488–96.Google Scholar
Pough, (F. H.), 1941. Ibid. 27, 92–102.Google Scholar
Roy, (D. M.), and Mumpton, (F. A.), 1956. Econ. Geol. 51, 432–43.CrossRefGoogle Scholar
Sorensen, (H.), 1962. Medd. Grønland, 167, no. 1.Google Scholar
Spry, (A.), 1969. Metamorphic Textures, Pergamon Press.Google Scholar
Sweatman, (T. R.) and Long, (J. V. P.), 1969. J. Petrol. 10, 332–79.CrossRefGoogle Scholar
Waldmann, (H.), 1947. Schweiz. Mineral. Petrogr. Mitt. 27, 472–520.Google Scholar