	*Neukirchen, Florian, Ries, Gunnar (2020) The World of Mineral Deposits. Springer International Publishing. doi:10.1007/978-3-030-34346-0*	Book
	123 Florian Neukirchen Berlin, Germany Gunnar Ries Marxen, Germany ISBN 978-3-030-34345-3 ISBN 978-3-030-34346-0...questions, or otherwise supported us. Berlin, Germany Marxen, Germany June 2019 Florian Neukirchen Gunnar Ries...works at CRB Analyse Service GmbH in Hardegsen (Germany) and in his spare time blogs about geoscientiﬁc...Friedrich-Christian Mine in Wildschapbach, Black Forest (Germany) (photo © F. Neukirchen, Markl Collection/Tübingen)...quartz. Silberwiese Mine, Oberlahr, Westerwald (Germany) (photo © Monika Günther/Archive Mineralogical
	Dunham, K. C. (1990) Geology of the Northern Pennine Orefield - TYNE to STAINMORE, Economic memoir covering the areas of 1:50 000 and one-inch geological sheets 19 and 25, and parts of 13, 24, 26, 31 32 (England and Wales) (2nd ed.) Vol. 1. British Geological Survey, London.	Book (edition)
	FELL TYNEHEAD CRAG GREEN RAMPGILL UNDERGROUND SHAFT LONGCLEUGH BOREHOLE ALLENHEADS No1 BOREHOLE JOHNSON...was the lowest bed reached by No. 1 underground shaft at Rotherhc>pe Fell Mine, near Alston [700 427 ]...rn). In W eardale, Burtree Pasture Underground Shaft [8603 4180] did not fully penetrate the bed. At...thickness is not rnaintained to the N at Slitt Shaft [9058 3920 ], where only 34 ft (10.3 rn) was recorded...Fell Mine [700 427] 190 ft (58 m); Rampgill UG Shaft [7975 4417] 157 ft (48 m); I_Jongcleugh No. 1 BH
	Dunham, K. C. (1948) Geology of the Northern Pennine Orefield - TYNE to STAINMORE, Economic memoir covering the areas of 1:50 000 and one-inch geological sheets 19 and 25, and parts of 13, 24, 26, 31 32 (England and Wales) (1st ed.) Vol. 1. British Geological Survey, London.	Book (edition)
	was: the lowest bed reached by No. 1 underground shaft at Rotherhope Fell mine, near Alston. Tl1e overlying...ft. In vVeardale, Burtree · Pasture t1nderground shaft did not fully penetrate the bed. At Greenlaws Mine...·�� -:-..:· ,� .�- .. 3 TYNEHEAO RAMPClLL U.C. SHAFT 4 CAASSHILL C OWCREEN 5 BURTREE' PASTURE 6...exposures in Middle hope and section of Slitt Shaft by J. C. Cain ; Section 9, Weardale Lead Co.'s section...Rampgill U .G. Shaft • • • Burtree Pasture U.G. Shaft Sedling 1\-Iine East ••• Old Fall Shaft • • • ••• Greenlaws
	*Clark, William B., Lydon, Philip A. (1963) Mines and Mineral Resources of Calaveras County, California. County Report* 2. California Division of Mines and Geology**	Report (issue)
	of Keystone-Union copper mine Photo 8. South shaft of Keystone-Union copper mine Photo 9. Surface... CONTENTS-Continued Photo 10. Mill at the Photo 11. Shaft no. Photo 12. Underground scene, Blackstone gold...the property where there is a 45-foot vertical shaft and a 35-foot northwest drift at the bottom of the...northeast. Approximately 2,200 feet southeast of the shaft shaft. Chromite 1904, Calaveras Since County has...dips 25° to 45° NE. Workings consist of a 10-foot shaft, and an inclined open cut 45 feet long i and

Erythrite from Shaft 235, Antonsthal, Breitenbrunn, Erzgebirgskreis, Saxony, Germany

Erythrite from
Shaft 235, Antonsthal, Breitenbrunn, Erzgebirgskreis, Saxony, Germany