Cosalite and Other Lead Sulpho-Salts at Grainsgill, Carrock Fell, Caldbeck, Cumberland

Arthur W. G. Kingsbury and J. Hartley
Department of Geology and Mineralogy, University Museum, Oxford
Department of Geology, University of Leeds

Summary: Cosalite, aikinite, zinckenite, jamesonite, and boulangerite occur at Grainsgill; the first three minerals have not hitherto been recorded from Britain. The specimens probably come from a series of low-temperature quartz-carbonate veins, later than the original mineralization and also distinet from the east west copper-lead veins.

Mineralogical Magazine; December 1956 v. 31; no. 235; p. 296-300; DOI: 10.1180/minmag.1956.031.235.03
© 1956, The Mineralogical Society
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