Notice of an occurrence of niccolite and ullmannite at the Settlingstones Mine, Fourstones, Northumberland; and of serpierite at Ross Island Mine, Killarney, Co. Kerry, Ireland
- 1 December 1927
- journal article
- Published by Mineralogical Society in Mineralogical Magazine and Journal of the Mineralogical Society
- Vol. 21 (119) , 383-387
- https://doi.org/10.1180/minmag.1927.021.119.03
Abstract
The old mine Settlingstones, situated three miles north of Haydon Bridge in the county of Northumberland, was originally worked as a lead mine, but, during the htst fifty years, as the vein has been explored farther west, it has attained far greater importance as the largest and most consistent producer of witherite in the British Isles. The Settlingstones main vein has a direction approximately north-east and southwest, and has been proved for a distance of nearly 1½ miles. The vein has varied in width from 3 feet up to 40 feet, the most productive witherite-bearing portion averaging 10 to 12 feet. The enclosing rocks are sandstones ('whetstones') and shales ('plate') of Carboniferous age, and dolerite (Whin-sil) which here attains a thickness of a little over 21 fathoms.Keywords
This publication has 1 reference indexed in Scilit:
- On the occurrence of Alstonite and Ullmannite (a species new to Britain) in a Barytes-Witherite vein at the New Brancepeth Colliery near DurhamMineralogical Magazine and Journal of the Mineralogical Society, 1910