 | | Report (issue) | | of the Menominee Iron-Bearing District Dickinson County, Michigan and Florence and Marinette Counties...cooperation with the Geological Survey Division, Michigan Department of Conservation PAPER 513 Geology...of the Menominee Iron-Bearing District Dickinson County, Michigan and Florence and Marinette Counties,...cooperation with the Geological Survey Division, Michigan Department of Conservation 'I UNITED STATES...of the metagabbro bodies ____ -------Marinette Quartz I>iorite_-- __ --------------General relations |  | | Journal (article/letter/editorial) | | Lupulescu, New York State Museum; Dr. George Robinson, Michigan Technological University; Dr. Sarah Hanson, Adrian...RoAd oCCURRENCE, wEST pIERREpoNT, ST. LAwRENCE CoUNTy, NEw yoRk. S. C. Chamberlain1, M. Walter2, and...New Look at An Old Locality: The Chickering Mine in Walpole, NEW HAMPSHIRE. P. Cristofono1, T. Mortimer2...A56:132–48. 280 ROCKS & MINERALS The Chickering mine is located in the Keene pegmatite district of southwestern...two zones typified by a quartz-cleavelandite-perthite assemblage. The quartz-cleavelandite-perthite zones |  | | Journal (article/letter/editorial) | | University] at 18:50 05 September 2015 Walpole, Cheshire County New Hampshire 410 ROCKS & MINERALS ...rwilken@roadrunner.com ROBERT JANULES of the Chickering Mine Unless otherwise noted, all photos and specimens...tom@mindatnh.org Figure 1. The entrance to the Chickering mine area: Pierre Hoge Reservation of the New Hampshire...Figure 2. Map showing the location of the Chickering mine, prepared by William Besse. Collecting at the Pierre...have made infrequent trips to the Chickering mine in Walpole, New Hampshire. We all share a common interest |  | | Journal (article/letter/editorial) | | entrance and arch of the Palermo mine, North Groton, Grafton County. Rob Lawrence photo, courtesy Bob...2015 LOCATIONS BY COUNTY Belknap County Alton area: arsenopyrite, galena, quartz (crystals), sillimanite...(lodestone), nepheline, quartz (amethyst). Laconia area: psilomelane, quartz (crystals), sphalerite,...occurrence is particularly noteworthy for Carroll County Albany, Blackberry Crossing (includes the Moose...(microcrystals), genthelvite* (microcrystals), microcline, quartz* (smoky, crystals), siderite, siderophyllite, zinnwaldite |  | | Report (issue) | | DIRECTOR THE MENOMINEE IRON-BEARING DISTRICT OF MICHIGAN BY WILLIAM SHIRLEY BAYLEY CHARLES RICHARD VAN...Talpose schists 221 Argillaceous rocks 225 Cherty quartz rocks 226 Conclusions from microscopical study...districts 229 Origin of the dolomites and cherty quartz rocks 230 Folding 232 Major folding 232 Cross...belt 235 _ 235 237 Marginal folds 237 : Walpole fold 238 Pewabic fold 239 Quinnesec fold...ores 384 Minerals associated with the ores 386 Quartz, dolomite, and calcite 386 Pyrite and chalcopyrite |  | | Journal (article/letter/editorial) | | nickel-cobalt-native silver type, and (ii) the quartz-pyritegalena type. These characteristics provide...The following may be mentioned here: Condon and Walpole (1955); Department of National Development, Commonwealth...of sedimentary origin as proposed by Condon and Walpole (1955) is quite untenable. SHEARING ALONG ANTICLINES...Prospect is specifically mentioned by Condon and Walpole (1955). A publication of the Department of National...in uranium mineralization is found at the Verna mine, Beaverlodge, Saskatchewan, of which Campbell (1957 |  | | Journal (issue) | | of the Zuma Volcanics POINT DUME Los Angeles County, California By EARTH SCIENCES BOARD University...by pre-exist- Photo 1. Point Dume, Los Angeles County. The rocks that make up the cliff face on the point...Volcanic rocks of the El Mod- eno area, Orange County, California: US. Geological Survey Professional...the central Santa Monica Mountains, Los Angeles County, California: U.S. Geological Survey Bulletin 1457-...east-central Santa Monica Mountains, Los Angeles County, California: U.S. Geological Survey Map I-1146 |  | | Report (issue) | | deposits (S) ........................ Deposits in quartz-pebble conglomerates (G)........ Vein and vein-type...Types of deposits are peneconcordant sandstone, quartz-pebble conglomerate, vein and vein-type, marine...significant deposits of uranium known in 1975 are in quartz-pebble conglomerates and sandstones, which together...total product! on . The largest deposits occur in quartz-pebble conglomerate at the Elliot Lake-Blind River...included in this classification); (2) deposits in quartz-pebble conglomerates; (3) deposits in veins, shear |  | | Report (issue) | | .. Welland County......... . . . . . . . . . . . . . . . . . . . . . . . Haldimand County...... . . .... . . . . . Brant County......................... . . . . . . . . . Norfolk County............. . . .... . . . . . , . . . . . . . . . . Oxford County... . . . . . . . . . . . . . . . . . . . . . . . . ..... . . . . . . . . . . . . . . . . . . Stormont County, Cornwall Township.... . . . . . . . . . . . ....Cayuga Mine........... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Excelsior Mine.. . |  | | Book (edition) | | gem stones mon dull are as hard or harder than quartz, a com- mineral everywhere present as dust which...Hardness Scale 6. Orthoclase 1. Talc 2. Gypsum 7. Quartz Topaz Corundum 10. Diamond 3. Colcite 8. 4...Your will scratch orthoclase feldspar but not quartz. In making hardness appears to be a scratch paper...the general arrange- ment of these surfaces. Quartz and amethyst, for example, are frequently crystallized...SPODUMENE DANBURITE DATOLITE GARNET FLUORITE QUARTZ CRYSTALS SPINEL STAUROLITE •^^ VESUVIANITE |  | | Journal (issue) | | Yellow Type IIa Diamond Coloured by H4 Centres | A Quartz ‘Soudé Emerald’ | Synthetic Rock Crystal Clusters...Alonso-Perez Harvard University, Cambridge, Massachusetts, USA Editorial Assistant Carol M. Stockton Edward Boehm...Boehm RareSource, Chattanooga, Tennessee, USA Editor Emeritus Roger R. Harding Maggie Campbell Pedersen...Emmett Crystal Chemistry, Brush Prairie, Washington, USA Emmanuel Fritsch University of Nantes, France Rui...Mary Johnson Consulting, San Diego, California, USA Stefanos Karampelas Basel, Switzerland Lore Kiefert |  | | Book | | Mineralogy of Michigan by E. W. Heinrich updated and revised • by George W. Robinson M By E W~ Hellnr]ch...Museum Michigan Technological University Houghton, Michigan 49931 2004 © MINERALOGY OF MICHIGAN 3 FOREWORD...FOREWORD Michigan has a long and varied geologic history that includes repeated episodes of volcanism...before the first Europeans set foot here. When Michigan became a state in 1837, one of the first actions...and we continue to learn more about them today. Michigan minerals helped to build the state and nation |  | | Journal (article/letter/editorial) | | by the Cullen Granite dated at 1765_+90 m.y. (Walpole etal., 1968; Nicholson, 1980). The principal host...are slightly transgressive and discontinuous (Walpole et al. 1968; Nicholson 1980). Tourmalinite +...metasediments and is defined by changes in the quartz and tourmaline content. Graded bedding is common...Slack et al. 1984) with tourmaline-rich bases and quartz-rich tops as well as the inverse. Rare slump structures...defined by ellipsoidal clots of tourmaline and quartz-, graphite- and sulphide-rich layers or very fine |  | | Journal (article/letter/editorial) | | ............................... 417 417 Nkana Mine ..................................................mineralizationto the reef is explainedby Condonand Walpole (1) as due to precipitationin the zone of mixing...convertedmuchof the cherty dolomite to a talcose-quartz-dolomite rock, and, on the margins,the argillaceous...paper on above area, by M. A. Condonand B. P. Walpole (1). Nomenclature of this early interpretation...of the nearly vertical junction betweensoft dark quartz siltstoneand hard reddish silicified limestone |  | | Journal (article/letter/editorial) | | the Keystone Trap Rock Quarry at Cornog, Chester County, Pa. thru the courtesy of the owners Messrs J....were obtained, principally of the unusual blue quartz, pyrrhotite, chalcopyrite, epidote, allanite traces...Limestone Products Company, Lime Cr,est, (Sussex County) N . J. There were 187 persons registered, the...malacolite, norbergite, phlogopite, pyrite, pyrrhotite, quartz, ruby corundum, scapolite, titanite, tourmaline...Shulman. The Loux family's showing of local (Bucks County) fossil wood was outstanding. There was also a |  | | Report (volume) | | Gabbro-Diorite----------------.-------.____.___. Newburyport Quartz Diorite__------_---_-._____________ Dedham Granodiorite...youngest, are (1) Salem Gabbro-Diorite, Newburyport Quartz Diorite, Dedham Granodiorite, and Westwood Granite... Dedham, Westwood, Dover, Canton, Sharon, and Walpole. The Blue Star Memorial Highway (U.S. Route 1)...epidote %-2 inches thick. Lenticular segregations of quartz, a few inches thick, are present in a few places...phenocrysts were seen. The principal minerals are quartz (25-35 percent) ; untwinned plagioclase feldspar |  | | Journal (article/letter/editorial) | | thick. In someplacesit may be pure kaolin,but if quartz was presentin the parent rock, the zone is gritty...haveshownthat, sincepotassium deposits. Detrital grains of quartz, feldspar, and fits its crystal structurebetter...simple, fractures. consistingof pitchblende,cherty quartz, pyrite, and (2) On a local scale,pitchblendeveins...control of of Fig. 5) are indicatedas Archaeanby Walpole uranium ore bodies is their occurrence in lower...structurally complex syncline (called the Embaymentby Walpole et al., 1968) of lower Proterozoic sedimentsis |  | | Journal (article/letter/editorial) | | mineral has been mined quite extensively in Clay County, Alabama, from one end to the other. It is quite...Manuel Mine, San Manuel, Arizona. Tourmaline: Mass of black tourmaline xls in massive milky quartz. From...Stayton Mine, Lone Tree, two miles south of Antimony Peak, near Hollister, San Benito County, California...its original shape. The Stayton Mine is principally a quicksilver mine, yielding cinnabar and native mercury...Colo. On the side of Anvil Mt. is the Coming Wonder Mine, on a contact of the Sultan Mt. monzonite stock |  | | Journal (article/letter/editorial) | | reconnaissance has been described by B. P. Walpole et al. (1968) and B.P. Walpole and P.W. Crohn (1965). Subsequent...Geological map of the Katherine-Darwin region (Walpole et al., 1968) Galena Ages in the Alligator Rivers...from 1830 to 1750 m.y. (Leggo and Compston, in Walpole et al., 1968; Compston and Arriens, 1968). All...metasediments where the dominant host rocks are quartz-muscovite - chlorite schists with or without associated...1975). Galena occurred either as discrete grains in quartz and carbonate veins, as fine disseminations in |  | | Journal (article/letter/editorial) | | the discovery of a variety of gemstones. Beryl, quartz, 300 ROCKS & MINERALS in museum and fluorite...Natural His tory in New York City, the Los Angeles County Museum of Natural History, and the Harvard Mineralogical...reFigure 1: Almandine, 2.15-carat emerald cut, Turner mine, Marlow; Harvard collection; cut by Steve Elberfeld...goshenite, 5.74-carat square barion, Island Mica mine, Alstead; private collection; cut by John Bradshaw... variety aquamarine, 50.32-carat cushion, Keyes mine, Orange; Harvard collection. 4# Figure 3: Beryl |  | | Journal (article/letter/editorial) | | places, and basal ferruginous sandy quartz breccia with rare quartz pebbles at the contact in places, may...related to remote terrestrial volcanism (Fig. 6c). Dickinson and Suczeck (1979) have shown that clast compositions...older greywackes are relatively low in feldspar and quartz clasts, and their distribution in the QFL and QmFLt...QmFLt plots (which acccording to Dickinson and Suczeck reflect weathering, provenance relief, transport...fragments; Qm, monocrystalline quartz grains; Qp, polycrystalline quartz grains; Lt, total polycrystalline |  | | Journal (article/letter/editorial) | | N. Piedras, LI Paso, Texas 79930. LITTLE THREE MINE-Famed Producer of Gem Spessartite and Topaz, reopened...Square, Bristol, New Hampshire 03222 WISCONSIN & MICHIGAN MINERALS-A 2 "to 3 "specimen of Acmite, Native...appointment only. Northeast Mineral Services; Walpole, Mass.; Phone (617) 668-2008. TUMBLING STONES...Jewelry; Gems; reasonably priced, mailed postpaid, free Mine maps. What do you want? Beryl Mountain Mineral Shop...May through Labor Day. World's largest deposit of quartz conglomerate. Rock Shop. Souve nirs, refreshments |  | | Report (issue) | | FRONTISPIECE An aerial view of the Kemerston mine site showing the settlement pond in the foreground.......................................... 5 Vein quartz ........................................................................................... 97 Walpole – Lake Muir region ........................................................................ 164 Quartz veins ..................................................................................... 196 Quartz veins ........................................ |  | | Journal (article/letter/editorial) | | tourmaline crystal was noted in the Luella mine near Avon, Latah county, Idaho, which measured 3x3x8 feet. Other...Dakota. A black crystal from Micaville, Randolph county, Alabama, was 10 inches in diameter and from 3...length. Other crystals have been noted at the Baer mine near Orange, New Hampshire, to 10 inches in diameter...noted in the School Section pegmatite of Fremont county, Colorado. ROCKS AND MINERALS Maine, Connecticut...pink and green crystals at Ohio City, Gunnison county, Colorado; dark green, pink, and indicolite tourmalines |  | | Journal (issue) | | David G. Todd ChesterN. Truax, Jr James R. Walpole ART DIRECTOR John W. Prezioso ADVERTISING MANAGER...GAS RECENT INNOVATIONS John C. Osmond LAND MICHIGAN 1100 Ring Building, Member— Audit Bureau of... of Minerals Analysis, Policy and National Mine Health and Safety Academy and the remainder of...Federal Mine Safety and Health Act of 1977 and its standards to working conditions on mine sites and...mines where the responsible employer is neither a mine operator nor an independent contractor. In clarifying |
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