Mineralization at Le Pulec, Jersey, Channel Islands

R. A. Ixer and C. J. Stanley
Department of Geological Sciences, University of Aston in Birmingham, Gosta Green, Birmingham B4 7ET
Department of Mineralogy, British Museum (Natural History), Cromwell Road, London SW7 5BD

Summary: Veins cutting the Brioverian sediments at Le Pulec, Jersey, were worked in the 1870s for silver and lead. Investigation of the mineralogy of both the sediments and cross-cutting veins has shown a complex mineralization history. Siltstones close to the contact with the North-West granite have been bleached, silicified, and dolomitized, and this has been accompanied by the introduction of pyrite, marcasite, and arsenopyrite. Later vein mineralization contains sphalerite and ferroan dolomite accompanied by lesser amounts of galena and chalcopyrite and minor quantities of argentian tetrahedrite, native antimony, bournonite, cubanite, plagionite, and stibnite. The mineral assemblage is unlike the other mineral occurrences of Jersey that have previously been described.

Mineralogical Magazine; December 1980 v. 43; no. 332; p. 1025-1029; DOI: 10.1180/minmag.1980.043.332.10
© 1980, The Mineralogical Society
Mineralogical Society (www.minersoc.org)