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Some new occurrences of gonnardite

Published online by Cambridge University Press:  14 March 2018

H. Meixner ,
M. H. Hey  and
A. A. Moss
H. Meixner
Affiliation:
Bergdirektion, Hüttenberg, Carinthia, Austria
M. H. Hey
Affiliation:
Department of Mineralogy, British Museum
A. A. Moss
Affiliation:
Department of Mineralogy, British Museum
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Summary

This zeolite, hitherto recorded only from Chaux de Bergonne, France, has been found as zoned spherules with thomsonite (var. faroelite), on specimens from Aci Castello and Aci Trezza, Sicily, and Capo di Bove, Rome, from Weilberg, Rhineland, and from Klöch, Styria. Three chemical analyses confirm previous results; optical data suggest some variation in composition within a spherule. There is a striking resemblance between X-ray fibre photographs of gonnardite and of thomsonite, and between X-ray powder photographs of gonnardire and of natrolite. The Klöch occurrence, where the gonnardite is accompanied by phillipsite, is described in detail.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 31 , Issue 234 , September 1956 , pp. 265 - 271
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1956

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References

References

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Kalb, (G.) and Klotsch, (H.), 1943. Zeits. Krist., Abt. A, Vol. 105, p. 322.Google Scholar
Köhler, (A.), 1932. Verhandl. GeoL Bundesanstalt, Wien, p. 141.Google Scholar
Kontrus, (K.), 1952. Tschermaks Min. Petr. Mitt., ser. 3, Vol. 3, p. 391.Google Scholar
Machatschki, (F.), 1926. Centr. Min., Abt. A, p. 115.Google Scholar
Paulitsch, (P.), 1952. Mitteilungsblatt Abt. Min. Landesmuseum Joanneum, Graz, Heft 1, p. 17.Google Scholar
Schoklitsch, (K.), 1932. Neues Jahrb. Min., Abt. A, Beil.-Bd. 63, p. 319.Google Scholar
Sigmund, (A.), 1895. Tschermaks Min. Petr. Mitt., Vol. 15, p. 361.Google Scholar
Sigmund, (A.), 1924. Mitt. Naturwiss. Verein Steiermark, Graz, Vol. 60, p. 7.Google Scholar
Sigmund, (A.), 1926. Ibid., Vol. 62, p. 158.Google Scholar
Winkler Von Hermaden, (A.), 1951. Sitzungsber. Osterr. Akad. Wiss., Wien Math. Nat. Kl, Abt. I, Vol. 160, p. 1.Google Scholar