 | | Journal (issue) | | You will find us on the Roaue River, 4-j miles south on Highway 99. THE HODGE PODGE SHOP grantts pass...ct. 3-15 ct PRECIOUS & SEMIPRECIOUS STONES NEW YORK 19, N.Y. i*i ■ LARGE EACETEDLscnuine) j j AQUAMARINE...Speaking 3 T5I California Convention 4 Yogo Sapphire Mine Reopened 4 Alpha Counters 5 Berkeley Cass iter ite...Notes 25 Cover Picture: Darwin Falls Canyon BELOW THE FALLS LOOKING WEST, NEAR Darwin (courtesy Calif. Div...States. YOGO SAPPHIRE MINE REOPENED A REOPEN INC OF THE FAMED YOGO~ 'SAPP H I RE MINE, IN THE LITTLE BELT |  | | Journal (issue) | | Arizona 85740 Articles The mines and minerals of Darwin, California ......................................... 5 by C. S. Stolburg Minerals of the Pereta mine, Tuscany, Italy ..................................and M. Tazzini Alteration minerals of the Cetine mine, Tuscany, It a ly ................................ Sabelli and G. Brizzi Siegenite from the Buick mine, Bixby, Missouri .................................R. Kampf Natural History Museum of Los Angeles County Arthur Roe Tucson, AZ Abraham Rosenzweig University |  | | Journal (article/letter/editorial) | | contrasting skarn types in the Darwin polymetallic skarn district, California, USA R. Newberry Department of...AK 99775, USA Abstract. The polymetallic Pb-Zn-Ag-W-Cu-Au skarn and vein ores of the Darwin area, California...Scheelitebearing skarns are associated with the alkaline Darwin stock; small Cu_+Au skarns are adjacent to sheared...notion of a systematic pattern. The Darwin district in California, USA, is one such district, as it contains...MacKevett, 19'62) have been produced from the area. The Darwin district is notable for one of the few integrated |  | | Report (issue) | | ueRAP. Geology and Ore Depostts of the Darwin Quadrangle Inyo County, California GEOLOGICAL SURVEY PROFESSIONAL...368 Geology and Ore Deposits ofthe Darwin Quadrangle Inyo County, California By WAYNE E. HALL and E....____________________________ _ Old fanglomerate marginal to Darwin Wash ___ _ Lakebeds.--------------------------------Recent...Folds-------------------------------------Darwin Wash syncline~---- _____________ _ Darwin Hills overturned syncline...Classification and origin ____________________ _ Darwin lead-silver-zinc district ______________ _ Geochemical |  | | Journal (issue) | | Newsletter $6.00 Fibrous Malachite from the Mindingi Mine Katanga, Democratic Republic of the Congo Tony Nikischer...Specimens of fibrous malachite from the Mindingi Mine in the Kambove District of Katanga began to appear...ten {I 0) years ago (see figure J ). Although the mine was first worked superficially in the 1930s for...DRC as well (see figure 2). Today, the Mindingi Mine continues to produce wonderful malachite specimens...specimenand image. Nickel Laterite From the Tiebaghi Mine, New Caledonia Bob Werner werner@lcturbonet.com |  | | Journal (volume) | | classes Mines and mineral resources of a given county or area (describing kind, character, distribution...of these minerals Number of total value of the County mineral products 11 18 18 20 Imperial Inyo ...Inyo and ties. San Bernardino counties. In Inyo County high-grade magnetite ore was being mined from the...being shipped to San Francisco. In San Bernardino County high-grade hematite was being mined from Cave Canyon...Luis Obispo, and Santa Barbara counties. Gold. Mine development and the production of gold showed |  | | Journal (article/letter/editorial) | | quartz,calcite,K-feldspar, chlorite,hematite,chalcopyrite, pyrite,(c),sericite,quartz, chlorite,calcite...Sequence • Central Belt, granite I HELLYER RIVER MINE economicdepositsoccurin the Mt. ReadVolcanics ... Mt. National Darwin Grid Corbett (1981) divided the volcanicsinto three Darwin • I groups,a Westernsequence...Westernsequence, a Centralbelt, andthe South Darwin TyndallGroupandcorrelates(Figs.1 and2). An adY[C,. ]...]. The Mr. Read ¾olcanics between South Darwin ditional sequence(the Lake Beatrice sequence)of a• the |  | | Journal (issue) | | San Pedro Mine in Santa Fe County, and along with his son Phillip is actively exploring the mine for minerals...minerals. The San Pedro Mine is perhaps best known for producing beautiful specimens of finely crystalline...from calcite. It is also w-enowned for large chalcopyrite crystals (up to 3 inches, 7.5 cm) altered on...Phillip have also developed a surface exposure at the mine to produce some very nice, single, sceptered quartz...during the last year: a presidential election in the USA, more lands closed to public use, mineral localities |  | | Journal (article/letter/editorial) | | specimen is from the Number 20 mine near Spruce Pine, Mitchell County, North Carolina. Author’s specimen and...Figure 5. A 2-cm uraninite cube from the Cardiff mine, Wdberforce, Ontario, Canada;Canadian Museum of...the famous Palermo and Ruggles mines in Grafton County, New Hampshire; dendritic uraninite intergrowths...WestChester County, and from a locality at Richville Station, St. Lawrence County, New York. Uraninite...from Avondale, Chester County; from Upland and near Vera Cruz, Lehigh County; and from a site near Fairmount |  | | Book | | Pemberton ~ VAN NOSTRAND REINHOLD COMPANY ~ NEW YORK CINCINNATI TORONTO LONDON MELBOURNE ' Copyright©...Reinhold Company Inc. L35 West 50th Street, New York, N.Y. 10020 Van Nostrand Reinhold Publishing 1410...are reported by county of occurrence. Map 1-2 shows the county boundaries and county names. When possible...,o Map 1-2. Outline map of California showing county boundaries. __ _) 4 MINERALS OF CALIFORNIA...composition between acidic and basic rocks. drift mine Adit(s) driven into gravel. euhedral Characterized |  | | Report (issue) | | been found in the mining the nugget Jim, Placer County, California, in 1871 by a small girl in who town...The bibliography has been updated and expanded. County lists published by Collins (1) pp. 40-64, in Murdoch...rhyolite locality in Alameda County and the lawsonite type locality Marin County, which have been completely...color" from Cherokee Flat, Butte County); and to borax ("Lake County, in large crystals in the clay of...the total entry!). No hint acid. Clear Lake, Lake County" foreshadows the subsequent discovery of immense |  | | Journal (article/letter/editorial) | | named: pyrite, arsenopyrite, galena, sphalerite, chalcopyrite, bismuth minerals, pyrrhotite, tetrahedrite-tennantite...JamesA. Noblefor the resultsof yearsof work in the mine and laboratory. Noble'sresultsin generalagree with...in magnetite. In someof the outlyingparts of the mine there is no closerelationbetweengold and arsenopyrite...a studyof assaysof ore from theGeorgeGold-Copper Mine of Stewart,BritishColumbia, showsthat gold is associated...amountof arsenopyrite in the ore. In someareasof the mine arsenopyrite carriesmore gold than in others,but |  | | Journal (article/letter/editorial) | | Alabama 36849-5305 SCHEELITE CAMP BIRD MINE, OURAY COUNTY, COLORADO I n keeping with the theme of...specimens have been pro duced. The Boriana mine in Mohave County, Arizona, has fur nished orange euhedral...east section of the famous Camp Bird mine near Ouray, Ouray County, Colorado. A complete description of...hiibnerite, pyrite, sphalerite, galena, and chalcopyrite. Many of the better specimens were mined by...of Ronal E. Bentley (1948-1995). Cohen mine in Cochise County. Good specimens containing generally smaller |  | Kampf, A. R., Mills, S. J., Nash, B. P. (2016) Pauladamsite, Cu4(SeO3)(SO4)(OH)4·2H2O, a new mineral from the Santa Rosa mine, Darwin district, California, USA. Mineralogical Magazine, 80 (6) 949-958 doi:10.1180/minmag.2016.080.032 | Journal (article/letter/editorial) | | new mineral from the Santa Rosa mine, Darwin district, California, USA A. R. KAMPF1,*, S. J. MILLS2 AND...Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA Geosciences, Museum...Geophysics, University of Utah, Salt Lake City, UT 84112, USA [Received 16 June 2015; Accepted 13 September 2015;...mineral from the Santa Rosa mine, Darwin district, Inyo County, California, USA, where it occurs as a secondary... crystal structure, Santa Rosa mine, Darwin district, California, USA. Introduction THE Jahn-Teller |  | | Journal (article/letter/editorial) | | specimens from the Red Devil Mine, copper nuggets from the Kennecott mine, etc. and I can assure you that...one of the numerous tungsten mines in the Darwin, Inyo County, California, area."—note from James H. Richardson...pebbles of brown jasper have been found on the south side of Indian River Inlet, Sussex Co., Del., by...the Lockheed Reactor on the south bank of the Etowah River, in Dawson County, Ga. Chatoyant masses of olive-gray...found this specimen at Graveyard Point In Owyhee County, Idaho, in 1957."—on label accompanying the agate |  | | Journal (article/letter/editorial) | | 86, 1991, pp. 960-982 Zoning and Genesisof the Darwin Pb-Zn-Ag SkarnDeposit, California: A ReinterpretationBasedon...of sulfidereplacementbodieszoned away from the Darwin quartz monzonite plutonandformedfrommagmaticfluidsat...skarnsulfidebodiesare appreciably(>20 Ma) youngerthan the Darwin pluton, and undergroundmappingand core loggingindicate...depositedsulfides.Realisticore depositional modelsat Darwin requiresimultaneous changesin (at least)temperature...and 6 oz/tonAg (Hall and MacKevett,1962). The Darwin mine per se consistsof a seriesof isolatedPb-Zn-Ag | | | Book | | ^ '“ P r . . . I West Orange SOUTH SAN FRANCISCO PUBLIC LIBRARY 9048 00992838 7 257989 R q549...] Pemberton VAN NOSTRAND REINHOLD COMPANY NEW YORK CINCINNATI TORONTO LONDON MELBOURNE* Copyright...Reinhold Company Inc. 135 West 50th Street, New York, N.Y. 10020 Van Nostrand Reinhold 1410 Birchmount...species are reported by 1-2 shows the county boundaries and county names. When possible, locations of mines...within a township is illustrated by Figure 1-1. county of occurrence. Map *M. Fleischer’s 1980 Glossary |  | | Journal (article/letter/editorial) | | unexciting, yet, on looking closely at some of the mine workings and open trenches you find beautiful silky...original sulfide minerals were galena with minor chalcopyrite, pyrite, and sphalerite in a silicified limestone...copper, and sulfate from oxidizing galena and chalcopyrite have recombined to form abundant linarite. We...single minerals. We have collected galena in the Darwin District of California which has oxidized to ROCKS...limonite pseudomorphs. The ore outcrops of the Darwin Hills just north of where we live have abundant |  | | Report (issue) | | THE DARWIN SILVER-LEAD MINING DISTRICT, CALIFORNIA. By ADOLPH KNOPF. INTRODUCTION. Most of the lead...come from the Cerro Gordo, Darwin, and Modoc districts, all in Inyo County, in the eastern part of the...prosperous years $7,000,000 in argentiferous lead. The Darwin district has probably yielded between $2,000,000...of the present report to describe those of the Darwin district. The data on which this report is based...by H. W. Fairbanks.3 GEOGRAPHY. Darwin is situated in Inyo County, Cal., 24 miles southeast of Keeler |  | | Journal (article/letter/editorial) | | community of Talucah near Vahlermoso Springs, in Morgan County, north Alabama. A large portion of this cave had...Star zinc mine near the little village of Rush, Marion Co., Ark. CALIFORNIA—From a mine in Darwin, Inyo Co...Andersons, Darwin, Calif. In a recent letter from him he writes: "The Darwin, Calif., mine is lead and...Colorado School of Mines, I heard of an active uranium mine or quarry a couple of miles from town. Following...the owner drove up and told me I could visit the mine. On the way, I stopped to collect specimens of malachite |  | | Report (issue) | | Central group ____________________________ _ _ Carolina gneiss ________________________ _ Mica schist...__________________________________ _ ~ orth Carolina and South Carolina ______ ____ _ Georgia ______________...34 35 35 36 39 44 44 45 46 47 47 49 49 50 50 Mine descriptions ___________ --------- -- .. -------...___ _______________________ _______ _ Fauquier County ____ ______ ______ _____ _____ _ Franklin ____...properties _________ .. _____________ _ Halifax County ______ - _____ - __________ ~- _'- __ _ Virgilina |  | | Journal (article/letter/editorial) | | Mount Read Volcanicsbetween Que River and Mount Darwin, Tasmania M. SOLOMON, Bureauof Mineral Resources...circulationsystemsexposednear graniteat Murchison,Lake Selina,and Darwin (8-17%0)is probablya mixof sulfurderivedfromthe...(19-31%0),andat MountLyell,high-grade bornite-chalcopyrite-chalcocite assemblages (- 10.5 to +3.5%0). ...(asAgeS)andstandards oftheDepartmentof Scientific Lyell-Darwin(lyingsouthandeastof the Henty fault (northandwestof...mefrom Corbett et al. (1974), matic Darwin Granite in the south of the belt (Fig. White (1975), andCorbett |  | | Journal (article/letter/editorial) | | .. Bornite-chalcopyrite orebodies........................................ Chalcopyrite-pyriteorebodies...73% Cu. in reserve. The chief oremineralsare chalcopyrite, bornite,andpyriteandthe hostrocks,known astheLyell...miningtownshipof Queenstown is about onemile to the south-west,in the QueenRiver Valley, about500 feet above...Coldwindssweepin fromthe seaandrain GEOLOGYOF THE MT. LYELL MINE& TASMANIA 369 fallsin everymonthof the year,the...hasyielded43 percent,West Lyell 33 percent,andthe Mt. Lyell Mine 12 percentof the copper. Reservesare publishedas |  | | Journal (issue) | | Project 28-30 Our Affiliates 31 Mimetite, Ojuela mine, Mapimi, Mexico, 2.4 x 1.8 x 1.7 cm, Alex Schauss...experiencing remnants of winter while the rest of the county can feel spring in the air. This means it’s time...answer that question and show you why the Milpillas mine is one of the great contemporary mineral localities...metallic sulfide minerals include pyrite (FeS2), chalcopyrite (CuFeS2), galena (PbS), and sphalerite (ZnS)...associated relatively stable sulfides, such as chalcopyrite, sphalerite, and galena. These acid solutions |  | | Journal (article/letter/editorial) | | at 07:53 01 January 2015 Bournonite Yaogangxian Mine, Chenzhou, Hunan Province, China T here are certain...clearly the most prolific being the Yaogangxian mine, Hunan Province. (Additional locality information...associated with pyrite, galena, sphalerite, chalcopyrite, stibnite, boulangerite, zinkenite, tetrahedrite...Hawk mine, Blue Hill, Maine; New York City, New York; an unspecified locality in Chester County, Pennsylvania;...Cofer deposit in the Mineral district of Louisa County, Virginia, where it occurs with tetrahedrite; and |
|
