 | | Journal (article/letter/editorial) | | during emerald mineralization at Gravelotte, Murchison Greenstone Belt, Northeast Transvaal, South Africa...evolution during emeraId inception at the Gravelotte emerald mine has been studied by mi~~e~ornet~ and laser...respectively, 250, 150, and 24O”C, and pressures in the range of l-4 kb. Calculations of fo,show an initial low...In the later stages, phenakite was converted to emerald as alumina activities in the system increased....me~mo~hism. THE GRAVELOTTE AREA LIES along the southern margin of the Archean Murchison Greenstone Belt |  | | Journal (article/letter/editorial) | | EconomicGeology Vol. 84, 1989, pp. 1835-1849 Emerald Mineralization during RegionalMetamorphism'The...studiesof the I-Iabachtal(Austria)and Leydsdorp(South Africa) emeralddepositsindicatethat the emeraldformationwasnot...0361-0128/89/997/1835-15$3.00 p.96) on the famousTakowaja emerald depositsin the Ural Mountains(USSR):"It is now...MORTEANI Petrologicand geochemicalstudiesof the emerald interlayeredserpentiniteswhichis calledthe Habach...(lower schistcover) which is interpreted as The local emeraldsformed during regional metamorphismin an |  | | Report (issue) | | deposits of chromite, titaniferous iron ore, rutile, talc, asbestos, magnesite, sodium-rich feldspar, corundum...Marriottsville districts _-_____-___.___.____ Hollofield district ....._..._....-_-._..-._-.-_-.__._.._...... 709...709 710 711 712 713 714 714 714 714 Bare Hills district....._-____--._-_-_--_---.._.__-_..._._.. Woodensburg-Cardiff...ettsville-Dublin district..__-_---_-_-__--_-__--_---_-________ State Line district.-.----.._-_-_----...----_----West Chester district...-_._.. --__- .. .._.__ Philadelphia district....._._.-_.-.--. ___________ |  | | Journal (issue) | | Johnston & E. R. Swoboda Sulfur from the Perticara mine area, Pesaro-Urbino, Italy . . . . . . . . . . ...Pezzotta Famous mineral localities: The Lord Brassy mine, Tasmania . . . . . . . . . . . . . . . . . . .... John Sinkankas (1915–2002) at the Pala Properties Mine Bash, 1977. Van Pelt photo. NOTICE Died, John Sinkankas...of research into one of his most admired books, Emerald and Other Beryls, published in 1981. Honors poured...pay a rare book dealer later! v.1/#4 Columbian Emerald, Natrolite (OR), Benstonite (IL), Långban (Sweden) |  | | Report (volume) | | ............... Pick mine......................................... Shovel mine.........................Photomicrographs of chromite ore from the Red Lodge district........................ 167 Map showing claims........... In pocket Maps and section of the Pick mine......... In pocket Photograph of the Gallon Jug...chromium-iron relation in chromite from Red Lodge district.............. 168 Magnetic profile and geologic...cleaned chromite and chromite ore from Red Lodge district, Montana.......... Table showing gangue minerals |  | | Report (issue) | | Geology of the Cerro Gordo Mining District Inyo County, California By C. W. MERRIAM , GEOLOGICAL SURVEY...Gordo mine _____________________________ _ History of the Cerro Gordo mine ____________ _ Mine development...Production of the Cerro Gordo mine _________ _ 8 Geology of the Cerro Gordo mine ____________ _ 8 Rocks of...of the Cerro Gordo mine __________ _ Sedimentary rocks _________________ _ 9 Igneous rocks _____________________...strike __ _ 17 Ore occurrence in the Cerro Gordo mine __ _ Union chimney ____________________ _ 18 Jefferson |  | | Report (issue) | | Main-Barton open pit, Jundee gold mine, WA, viewed from the east, June 1997. The pit is approximately...RossCo Print Factory 4/188 Plenty Road Preston South Vic 3072 iv Dedication This volume is dedicated...Department of Natural Resources and Environment New South Wales Department of Mineral Resources Western Australian...developing and operating mines. The coverage of a wide range of commodities and the geographic spread throughout...which have occurred in the last decade and the wide range of issues that have been, and still are being, addressed |  | | Report (issue) | | L COVER Left: Betafite crystals, Silver Crater Mine, Cardiff. Specimen measures 6 cm by 4 cm by 3 cm...occurrence Davis Hill occurrence Princess sodalite mine Vardy quarry Golding-Keene quarry Egan Chute occurrences...corundum occurrence Childs Mine Rankin Mine Bessemer (Mayo) Mine Ruby (Jewell Ruby) Mine Bancroft to Maynooth...Maynooth Eagles Nest occurrence Baptiste Lake South occurrences McFall Lake diopside occurrence Warwickite occurrence...McCormack Mine Watson Mine Cairns Mine Plunkett Mine MacDonald Mine Woodcox Mine Genesee No. 2 Mine · Thompson |  | | Journal (article/letter/editorial) | | minerals (quartz, zircon, chromite, muscovite and talc), although neoformation of several generations of...distributions relates leaching and retention of a range of elements to mineral transformations in the principal...By contrast, in the humid region of the Darling Range of the western Yilgarn, ferruginous duricrusts of...currently operating in humid regions of the Darling Range, where goethite-rich ferricrete is forming on the...continued both inland and in the Darling Range. In the Darling Range, degradation of bauxitic ferruginous |  | | Report (volume) | | Deer Creek shear zone_______-___-__-__-_ Veins south of Gallatin Peak_____-__--____-_--_--__---_--_-_...area has rugged topography, with altitudes that range from 6,000 feet above sea level near the Gallatin...shear zone, and two small altered zones were found south of Gallatin Peak. Examination and analyses of samples...southwestern Montana near the northern end of the Madison Range in Madison and Gallatin Counties. The area is irregular...bordered by lower mountains of the Madison Range to the north and south. Drainage of the area is eastward and |  | Hollis, Steven P., Foury, Sabri, Caruso, Stefano, Johnson, Sean, Barrote, Vitor, Pumphrey, Andrew (2021) Lithogeochemical and Hyperspectral Halos to Ag-Zn-Au Mineralization at Nimbus in the Eastern Goldfields Superterrane, Western Australia. Minerals, 11 (3) 254 doi:10.3390/min11030254 | Journal (article/letter/editorial) | | mass gains in Fe, S, Zn, Pb, Sb, Ag, As, Cd, Ni, Cu, Ba, Co, Cr, Tl, Bi, and Au. Basaltic rocks show reduced...zone, characterized juvenile Sm-Nd (granite) and district in the northeast, to the Golden Grove camp in...ratios [6,7]. This zone extends from the Quinns VMS district in the northeast, to the Golden Grove camp inVMS...Radiometer) data once local variations to mineralization were understood [18]. Here, we once local variations to...Superior Province of Canada. Province of Canada. 2. Local Geology The Nimbus deposit is located in a ~7 km |  | | Journal (issue) | | % \ ' . / 1/ ■ l i ; BETAFITE Silver Crater Mine, near Bancroft, Ont., Canada Banks & Haefner Collections...WYOMING—Murray Kane ...................... REGARDING EMERALD AND BERYL—David L. Rife ............ HOW TO MAKE...two crystals of betafite from the Silver Crater Mine, near Bancroft, Ont., Canada. The single crystal..."Harold found his loose in the soil, and I found mine imbedded in a two-foot diameter apatite crystal...is a charge to collect at this mine, and it is a fair hike to the mine. Anything good, however, is always |  | | Report (volume) | | central Kentucky mineral district ____________ _ 3. Sketch of Faircloth mine adit showing location of...sphalerites from the central Kentucky mineral district showing distribution by zone and stage of mineral...however, contained no mercury. The reason for this local accumulation of mercury is not known, and its presence...minor element in lead-zinc deposits. At Langpele mine, Sweden, however, mercury is currently recovered...1 to 0.2 percent mercury. Chiefly a lead-zinc district, Langpele is nevertheless one of the largest sources |  | | Report (volume) | | MINES With a section on the THUNDER MOUNTAIN DISTRICT By B. F. LEONARD, U.S. GEOLOGICAL SURVEY, and...River district ____________________________ Chamberlain district _____________________________ South Fork..._______ Edwardsburg district _____________________________ Ramey Ridge district ____________________________...________ Big Creek district ______________________________ Middle Fork district _____________________________...____ Monumental Creek district _________________________ Marble Creek district ____________________________ |  | | Journal (article/letter/editorial) | | take the road south from Jeffrey City, Wyoming through Crook's Gap. Keep going south until the road...the place. The law requires a ten foot deep discovery pit to be dug at each 566 claim. From the road...valuable gray jade is still found in that area. Local dealers are asking $50 to $100 a pound for the apple...hornblende schist, actinolite schist, serpentine, talc, tremolite and quartz crystals. Olive green and...River to their bedrock source in the Medicine Bow Range. He leased his claims to the Eloxite Corporation |  | Anand, R.R., Hough, R.M., Salama, W., Aspandiar, M.F., Butt, C.R.M., González-Álvarez, I., Metelka, V. (2019) Gold and pathfinder elements in ferricrete gold deposits of the Yilgarn Craton of Western Australia: A review with new concepts. Ore Geology Reviews, 104. 294-355 doi:10.1016/j.oregeorev.2018.11.003 | Journal (article/letter/editorial) | | pathfinder elements in ferricrete will assist future discovery. Accordingly, to obtain conclusive evidence for...features in ferricrete in natural outcrops and mine pit walls 8 Mechanisms of formation of nodules and...gravels and duricrust have been targeted by open pit mining, either as the sole resource or as a precursor...many other parts of the world including West Africa, South America and India (Michel, 1987; Nahon, 1988;...margin, where a faulted escarpment (the Darling Range) separates the broad plateau of the Craton from |  | | Journal (issue) | | many exceptional pockets have been discovered. The mine is renowned for the diversity of colors and habits...One of the most remarkable pockets found at the mine was the Afghan Pocket, collected in 2001; it did...Agnus Dei claim, Colorado, USA. HISTORY: DISCOVERY AND RE-DISCOVERY Topaz has been known from the Pikes Peak...Peak area since the early twentieth century and local prospector Richard Fretterd has been searching for...cm” Continued on page 6 Pederneira Mine (Brazil) The Pederneira Mine is one of the most important sources |  | | Journal (issue) | | Calaveras County, Calif. GOLD on Quartz—$1,400 Crystal Mine, Angels Camp, Calif. GOLD—1.4 oz. mass, large crystals...dera County, Calif. GOLD on Quartz—$2,750 Crystal Mine, Angels Camp, Calif. KRISTALLE Wayne and Dona.............. 28 by Peter B. Leavens The Bluebell Mine, Riondel, British Columbia, Canada................20715 foreign payments Remittance may be made in local currency to the following: Canada: Mrs. J. W. Peat...S. Harker, 42 Oxford St., Leicester LE1 5XW South Africa: Horst Windisch, 30 van Wouw St., Groenkioof |  | | Book | | of the Magnesite Deposits Origin of the Magnesite Talc ---------Introduction - -Henderson and Connolly...Ontario ntario - - Introduction - --- Deloro Mine ---Cordova Mine Galena, Calcite, Barite, Celestite, Fluorite...Veins of Eastern Ontario General Statement Kingdon Mine, Galetta, Ontario Deposits of Celestite -----MINERAL...Animikean or Huroman The Keweenawan Alexo Nickel Mine 146 146 150 152 152 153 153 157 158 158 158 159...Geology - 197 Horne Mine 205 Amulet Mine 206 Waite-Ackerman-Montgomery Mine 208 Aldcrmac Mine 210 Origin of |  | | Report (volume) | | area)__________________________ Locality 11 (Lost mine)____________________________________ Billy Goat...prospects-Continued Northern part of the Slate Creek mining district-Continued Canyon Creek area____________________________________...__ Locality 68 (Minnesota mine)_______________________ Locality 69 (South Devils Park prospect)_____________..._ 61. Geologic map of the ad it at the Minnesota mine (loc. 68) __ 62. Geologic map showing sample localities...only four areas appear to have potential for the discovery of economic deposits. These areas are the 1\ionument |  | | Report (volume) | | ......................... 56 Nespelem (Moses) district............................................. ...Metalliferous deposits Continued. Nespelem (Moses) district Continued. Mines and prospects Continued. Replacement...deposits.................................. 80 Rebecca mine and adjacent prospects....................... 80...prospects........................... Park City district................................................. Metalliferous deposits Continued. Park City district Continued. Mines and prospects Continued. Lodes |  | | Report (volume) | | Salmon Summit mine............................................................ Jumbo mine........................................................ Brooks mine...................................................Blaine Mountain Old Denny district........................... Boomer mine (Mountain Boomer)............Toughnut mine....................................................................... Sherwood mine.........Sam mine..................................................................... Lucky Strike mine..... |  | | Report (issue) | | and Just mines..___._-._________ ._._____ Anselma mine._-______---_-_-_--_--_______-___-___________ Other...Geologic map of Crystal Graphite mine, Beaverhead County, Mont. 10. Map of mine and treatment plant of Southwestern...Geologic map of Dixon-American Graphite Co. and Faxon mine properties, near Graphite, Warren County, N.Y_____... Sketch map of underground workings of Lakeside mine, Warren County, N.Y..._______________________________...Y_______ 32. Cross section of Graphite Products Corp. mine area and quarry, near Saratoga Springs, N.Y.__. |  | | Report (volume) | | • 4. Emigrant, Mill Creek, and Sixmile mining district map showing mines, prospects, and sample sites...central part of the Boulder (Independence) mining district, North Absaroka wilderness study area, Park and...which adjoin the study area to the southeast and south, respectively. The U.S. Geological Survey investigations...centers, whereas those in the Sheepeater (Jardine) district and the Stillwater-Natural Bridge area are in...are in the Boulder district and one-third are in the Emigrant-Mill Creek district. The remains of 10 |  | | Report (issue) | | Geology, Staff . 41 Mine Safety Personnel, Kellogg-Wallace Area 116 Open Pit Operations, Calera Mining...Inc., Hercules Mine 121 Presentation of Award, 1956, Hecia Mining Co., Silver Mt. Mine 125 Statehouse...After 17 years of continuous operation, the Triumph Mine, a lead and silver producer near Hailey, closed...appropriate monies to continue buying tungsten, the Ima Mine near Patterson, in Lemhi County, ceased operation...past year. Copper is an important product of this mine and accounts for about half of the state's total |
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