	*Smith, R. C. II (1977) Zinc and lead occurrences in Pennsylvania. Mineral Resource Report* M72. Pennsylvania Geological Survey**	Report (issue)
	Brookmeyer (Blue Ball quarry), George Buchannon (Whim shaft of "new" Perkiomen mine), Betty and John Clauser...Wheatley-Brookdale-Phoenix vein (Phoenixville) 229 '6 235 236 246 263 Columbia County Almedia Mine area ...Hollow mine (Phoenixville), Chester County 226 229 235 42. Montgomery County Mine (Phoenixville), Chester...foundation 57. Photograph of view of S. Snyder shaft area and 148 148 discoloration of crops, Woodbury...Ecton mine 104. Photograph of old stack near engine shaft of Brookdale mine, Phoenixville district 105. Schematic
	*Spencer, A.C. (1917) The geology and ore deposits of Ely, Nevada. Professional Paper* 96. US Geological Survey doi:10.3133/pp96**	Report (issue)
	................... ·................ . Taylor shaft ..................................................basin ofWhiteRiverand Ward Mountain from Veteran shaft . . . . . . . . . . . . . . . . . . . . . . . ....section through Veteran workings and Boston-Ely shaft; plan and cross sections of Veteran ore body .....about half a mile west by southwest from the Giroux shaft. Here the detrital capping may be 10 or 15 feet...isolated hill which lies just west of the Golden Gate shaft of the McDonald-Ely Co. It is notewor'thy that the
	*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
	*(1919) Mines and Mineral Resources of portions of California. Report XV of the State Mineralogist* 15. California State Mining Bureau**	Report (issue)
	II, Lassen County. 226 227 227 228 228 229 229 235 236 Description Railroad Facilities Mining Conditions...Eagle Mine and ketch map of Hayden Mill- 231 235 Hill_ Modoc County. )utcrop of discovery vein on...Mine Camp of Goldstone Goldstone Mining M.i in shaft of the Company Open rut work at original strike...metamorphosed sediments Mill and head-frame at shaft of the Ozark Mine Mine dumps and compressor plant...Custom mill at Goffs, built district Eureka shaft 848 -of the Boose, Michael and Buchanan Company
	*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...along with dunite and small amounts of impure tremolite asbestos. The serpentine is highly sheared in...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
	*Dines, H. G. (1956) The Metalliferous Mining Region of South-West England* (1st ed.) Vol. 1. Geological Survey of Great Britain, London.**	Book (volume)
	Wheal Reeth ; Great Work Lode at 220 -ft. Level 235 Fig . 12.-Wheal Reeth ; Rosewarne Lode at 220 -...175 - fm . Level east of New 321 Cooks Kitchen Shaft Fig. 19.-- South Crofty Mine ; Main Lode at 290-fm...New FIG . 30.-Section through Penhalls Engine Shaft at 50 -fm . Level 322 323 324 324 328 342 348 365...Polberro and West Kitty mines .. 468 Cooks Kitchen Shaft Fig. 20.-South Crofty Mine ; No. 3 Lode, 290 -fm...the two engine houses, which are at Crowns Engine Shaft. (A.8077) .. 75 B .--BOTALLACK MINE. A picture
	*Dines, H. G. (1969) The Metalliferous Mining Region of South-West England* (1st ed.) Vol. 1 - 1969 reprint.**	Book (volume)
	11.-Wheal Reeth; Great Work Lode at 220-ft. Level 235 FIG. 12.-Wheal Reeth; Rosewame Lode at 220-ft. Level...Lode at 175-fm. Level east of New Cooks Kitchen Shaft . . 321 Fro. 19.-South Crofty Mine; Main Lode at...at 290-fm. Level west of New Cooks Kitchen Shaft . . 322 JG . 20.-South Crofty Mine; No. 3 Lode, 290-fm...Mine 463 FIG. 30.-Section through Penballs Engine Shaft at 50-fm. Level 464 Fro. 31.- Transverse section...Engine Shaft. (A.8077) . . B.- BOTALLACK MINE. A picture taken when workings at Crowns Engine Shaft were
	*Dines, H. G. (1988) The Metalliferous Mining Region of South-West England* (1st ed.) Vol. 1 - With additional addenda and corrigenda. British Geological Survey, Keyworth, Nottingham.**	Book (volume)
	Work Lode at 220-ft. Level ...................... 235 FIG. 12.-Wheal Reetl1;Rosewan1e Lode at 220-ft. Level...Lode at 175-fm. Level east of New Cooks Kitchen Shaft ........................................... 321...Lode at 290-fm. Level west of New Cooks Kitchen Shaft . . . . . . . . . . . . . . . . . . . . . . . .... 463 F10. 30.-Section through Pen.halls Engine Shaft al 50-fm. Level ................. 464 F,o. 31.-Transverse...the two engine houses, which are at Crowns Engine Shaft. (A.8077). . . . . . . . . . . . . . . . . . .

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

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