 | | Report (volume) |
| j'ust'east of the Verde fault, as shown in the Edith shaft of the United Verde Extension mine, it is thrown...Prescott. Another dike observed near the Tiptop shaft, in the Tiptop district, is a dullrwhite rock with...few millimeters thick and is associated with arsenopyrite and the more common sulphides. It seems to be...deposit. Arsenopyrite. Many, if not all, of the pyritic schist deposits contain, a little arsenopyrite, in...mineral was noted. Larger aggregates of massive arsenopyrite occur in the Blue Dick, Mark Twain, and Buzzard |
 | | Journal (issue) |
| Harbour ...•................ XXXVIII. XXXIX. XL. Shaft house and mill building, DomInion Antimony Company...strata. Most of the gold is free-milling, but the arsenopyrite, found in considerable quantities in some veins...surface is stained by the oxidation of pyrite and arsenopyrite, or is light grey to white. In places it is...Among 43 the metallic minerals, pyrite and arsenopyrite are much the commonest, but galena, chalcopyrite...protrudes from the wall-rock into the quartz. Arsenopyrite in the veins is erratic in distribution and |
 | | 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)...many sulfide deposits (e.g., pyrite, pyrrhotite, arsenopyrite, and chalcopyrite) iron is the most common metal |
 | | 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 |
 | | 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 |
 | | 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 |
 | | 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). . . . . . . . . . . . . . . . . . . |
 | | Report (issue) |
| . . . . . 267 Ore bodies....................... 235 Ore bodies. . . . . . . . . . . . . . . . . . . 269.... . . . . . . . . . . . 275 Geology near No: 3 shaft......... 239. PrOspects west of Pinyon Peak. . 275...Blossom No. 1 Lehi-Tintic................. 276 shaft.......................... 241 Selma...............Index ........... ~............................... shaft .................... : . . . . . 277 . ... ~·...Tintic Valley, from low spur south of He~kimer shaft; J3, Contact of quartz porphyry and monzonite · |
 | | 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 |
 | | 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 |
 | | 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 |
 | | Journal (volume) |
| West and South Temple CENTURY BLDG ., 231 - 233 - 235 EDISON ST. SALT LAKE CITY , UTAH THE SALT LAKE...raise connecting the three compartment vertical shaft with the adit tunnel level , under way for several...and that the property will be reopened soon . The shaft was down 700 feet when sinking was resumed in February...started a crew of men to work sinking a 200 -foot shaft from the surface close to the portal of the lower...about thirty inches of good milling ore. The ore shaft, and work is to be carried on contin with a small |
