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| Mica Deposits of the Southeastern Piedmont Part 1. General Features GEOLOGICAL SURVEY PROFESSIONAL...PROFESSIONAL PAPER 248-A Mica Deposits of the Southeastern Piedmont Part 1. General Features By RICHARD H. JAHNS...characteristics, and the economic possibilities of the mica and other pegmatite minerals UNITED STATES GOVERNMENT...__ Columbium-tantalum minerals _____ __ Epidote group _____ ________________ _ Garnet ___________________________...replacement deposits ____________________ - __ - - - - Mica in country rock _______________ _ Relative productivity |
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| lokaal "De drie Rozen" Digitale fotografie Sweet Home Mine Mineralenkwis Paul Van hee Ko Jansen Rik Dillen...* NAUTILUS INFO 29(3), 11.04 51-64 Fort Drum crystal mine, Okeeckobee, Florida * LITHORAMA 31(9), 11...Ste-Lucie mine, Ste.-Léger de Peyre, Lozère, France 409- 411 The Keller Lake pegmatite, Waupaca County, Wisconsin...Schweiz 32-36 Calcit aus Florida : die Fort Drum Crystal mine [Georges Claeys] 37-42 Lagunas, Mexiko (agaat)...Alumino-magnesiohulsite, a new member of the hulsite group, in kotoite marble from east of Verkhoyansk, Sakha-Yakutia |
 | | Journal (article/letter/editorial) |
| thermal balance, model no. 102. Furnace and control drum at left above; balance in housing at left below;...of cardboard or similar material mounted on (3) a drum driven by a spring chronometer mechanism and rotating...of cardboard or similar material mounted on the drum is so placed as to yield the desired cyde of temperature...raising the flexible fillet against the guide on the drum. This contact flexes the fillet and separates it...thc fumace is cut off. As the temperaturecontrol drum rotates, press ure of thc flexible fillet on the |
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| mining this month 1961 New California asbestos mine and mill planned near Copperopolis by Jefferson...mill tailing pump .. 22 Craigmont completes copper mine stripping in southern British Columbia and moves...Meramec Mining Company's Pea Ridge, Missouri iron ore mine development is right on schedule for first pellet...1961 VOL. 23, No. 6 i New California asbestos mine and mill are planned near Copperopolis by Jefferson...the mill tailing pump Craigmont completes copper mine stripping in southern British Columbia and moves |
 | | Journal (article/letter/editorial) |
| tendency to generate fines (MTF = smectite + illite/mica + talc + chlorite + kaolinite), and in contrast...386 2 of 15 Cerro Negro Norte (CNN) which is a mine-plant operation located in the Atacama region in...to M6) obtained from different zones of the CNN mine deposit were used in this work. It has to be noted...that these samples were taken directly from the mine and then crushed to 100% −3 mm to be used in the...Magnetite Hematite Corrensite Smectite Illite/Mica Talc Chlorite Kaolinite Mineralogical Composition |
 | | Report (issue) |
| under a cooperative agreement with the State of North Carolina and the Tennessee Valley Authority Physical...under a cooperative agreement with the State of North Carolina and the Tennessee Falley Authority UNITED...features—————__—_———___ Pegmatites———————————————————————— Mica deposits. ___——_—————_—___—_____ Tests of sheet...—_—_—__________________ Tests of visually qualified mica..———_ ——— _______ Summary and conclusions.————————...——— _-_--__-_-___---___-____-_ Chart for grading mica according to Indian standard sizes___.___---_.. |
 | | Journal (issue) |
| the U.S.A. 05 0 74470 02033 2 UNM’s HARDING MINE Exploring Plentiful Pegmatite 2 ROCKNGEM.COM ...Shipping l enta in Contin s 48 State Kingsley North 6” Stainless Steel Unit w/Galaxy & Nova Wheels •...1-0674NOVA Kingsley North 6” Stainless Steel Unit w/Resin Wheels Stock No. 1-0674 Kingsley North 6” Stainless...kingsleynorth.com SCAN ME Free Catalogs Kingsley North, Inc. P.O. Box 216: Dept 3, Norway, MI 49870-0216...With WorldWide Popularity 20 NEW MEXICO’S HARDING MINE The Must-See Pegmatite of the West Steve Voynick |
 | | Report (volume) |
| Bibliography of North American Geology 1946 and 1947 ^ By EMMA MERTINS THOM, MARJORIE HOOKER 'r> and..._ ni 3 7 15 311 * f *, BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY 1946 and 1947 BY EMMA MERTINS THOM...REECE DUNAVEN INTRODUCTION The bibliography of North American geology, including paleontology, petrology...publications on the geology of the Continent of North America and adjacent islands and on Panama, the...index to the lierature cited. The bibliography of North American geology to the end of 1945 is contained |
 | | Journal (issue) |
| bright yellow pseudowavellite and grey Wardite. This mine has been worked out completely. We have secured...Waiter F. EiJele .................... A SID ERITE MINE IN FRANCE ........................... ... .... ...FLUORESCENCE IN MINERALS. By E. W. Blank .... A COPPER MINE NEAR NEW ALBANY, PENN.............................rope-like forms of sand calcite, from Imperial County, Calif., one twisted right, and at about the center...vertical position; however, many of the bandies contain mica-marked stratifications, proving formation in a horizontal |
 | | Book |
| always one that has been well opened, such as a mine, a quarry, road or railroad cut, or a cliff. Fresh...cloth, mounted on a vertical or horizontal disk, a drum, or a belt pass19 ing over two pulleys. The strong...made with silicon carbide. This is mounted on a drum, disk, or belt, 4 to 10 inches in diameter and running...ELEMENTS Arborescent silver on calcite. From Keweenaw County, Michigan, comes this superb example of metal "...specimen, by the iron-oxide coating. This large group is from Galena, Illinois. Marcasite on calcite |
| | Book |
| always one that has been well opened, such as a mine, a quarry, road or railroad cut, or a cliff. Fresh...cloth, mounted on a vertical or horizontal disk, a drum, or a belt pass19 ing over two pulleys. The strong...made with silicon carbide. This is mounted on a drum, disk, or belt, 4 to 10 inches in diameter and running...ELEMENTS Arborescent silver on calcite. From Keweenaw County, Michigan, comes this superb example of metal...specimen, by the iron-oxide coating. This large group is from Galena, Illinois. Marcasite on calcite |
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| always one that has been well opened, such as a mine, a quarry, road or railroad cut, or a cliff. Fresh...sanding cloth, a vertical or horizontal disk, a drum, or a belt pass19 ing over two pulleys. The strong...removed by sanding cloth made with mounted on a drum, disk, or belt, 4 to 10 are running 220), or at...ELEMENTS Arborescent silver on calcite. From Keweenaw County, Michigan, comes this superb example of metal “sculpture...specimen, by the iron-oxide coating. This large group is from Galena, Illinois. Marcasite on calcite |
 | | Book (edition) |
| dictionary, especially the Dictionary Revision Group members and the Bureau's engineers, scientists,...panel of experts called the Dictionary Review Group. This group also examined the Society of Mining Engineers'...gratitude to the members of the Dictionary Revision Group: Robert L. Bates; V. A. Cammarota; M. Elizabeth... Norf Norfolk, England. N. of Eng North of England. N. Staff North Staffordshire Coalfield, England... Northumberland Coalfield, England. N. Wales North Wales. Pac Pacific Coast, U.S.A. Pat Patagonia |
 | | Book (edition) |
| the United States from samples found in South Carolina, but corundum mining did not start until 1871...identification from tl1e Laurens district, South Carolina. Systematic mining for corundum, as distinguished...varieties, was first started at Corundum Hill, North Carolina. The mineral has been found in many localities...Jackson, Macon, and Clay Counties, North Carolina; and Rabun County, Georgia. Between 1900 and 1905 the...Gallatin County, Montana, were also worked to a small extent. The Corundum Hill mine, Macon County, North |
 | | Report (issue) |
| INESWiEOTOTS, OF) SEDEG TAA IVITINGINGC Osteen tees MINE RESCUE. IN) PES CORWR DAU iN IRCCIDENTS) once...ANNUAL A TAG OUND Yi oe. ee ee Eee ot DR ADAMS COUNTY so secce tee ee ee be 1 IBANNOCK. (COUNIVY 3 ce...ae en ee ee BEAR AK COUNTY tice cto os eee ee ee, ee a meee IBENEWAH COUNTY: 2.-. 5 2: SEAN eee ee...GOUNTY 2g) coe reese See NI re ee en en BiALNE (COUNTY 27 in8 5 See oe ee ok ee es eT ee ee ee RBOTS WsCOUNT...Yee csr dot letBy eae ea es ge Bay Re a BON NERS COUNTY Js Seer e ee 8 RE Peo ee ea et a et ee ee BONNEVILLE |
 | | Book (edition) |
| 542 AVIS VU EIN Rn ree Rene ix x CONTENTS Mica, By Eucene Pace 220+ se terest ee oon .....--...ane 807 52 9a0e a oe eee 844: Sillimanite Group—Andalusite, Kyanite, Sillimanite, Dumortierite,...limestone Granite Basalt Feldspar Inferior Hardness Mica (H—aunder Apatite 3 Emery Garnet H—7 H—6...compounds. The ultimate grain size of abrasives in this group depends upon the properties desired in the finished...e 0.20 Turkey: Kalah. .. Gumuch. Samos..... USA. Virginia... Chester, Mass..| New York New York |
 | | Book (edition) |
| (lectosilicates) 272 Opal Tridymite Cristobalite Silica Group: Quartz Coesite Stishovite. Lechatelierite Adularia...Leucite CONTENTS X Hai.iyne Meli lite. Scapolite Group: Scapolite Chabazite Zeolites: Analcime Heulandite...Silicates: Chain Structures (lnosilicates) 341 Pyroxene Group: Enstatite Hypersthene Diopside Augite Pigeonite...Aegirine Jadeite Spodumene \Vollastonite. Amphibole Group: Anthophyllite Cumn1ingtonite Grunerite Tremolite-Actinolite...Olivine Group: Forsterite Olivine Fayalite :\t!onticellite. Humite Group: Chondrodite. Garnet Group: Pyrope |
 | | Book (edition) |
| . . . . . . . . . . 102 35.Yellow Cat Mine Road: Agatized Barite. . . . . . . . . ... . . . . . . . . . . . . . . 112 North Utah 40. Sardine Summit: Fossils, Black Horn Coral...Beryl, Garnet . . . . . . . . . . . 56. Drum Mountains: Agate. . . . . . . . . . ....important to understand that all sites, particularly mine sites, are subject to both fluctuations in mineral...prices and the whims of their owners. One day a mine may look as though no one had been near it in a |
 | | Book (edition) |
| four seg¬ ments or subfiles: (N) Bibliography of North American Geology (publications from 1785-1970) (G)...Bibliography and Index of Geology Exclusive of North America (published from 1933-1968) (B) Bibliography...that in the early volumes of the Bibliography of North American Geology, edited by John M. Nickles and...commonly have several variants, such as Great Smoky Group, Great Smoky Conglomerate, Great Smoky Formation...the total of 4,284 new Terms were United States county and city Terms. Counties and Cities in the United |
 | | Book (edition) |
| Framework Structures (Tectosilicates).236 Silica Group: Quartz—Chalcedony—Opal—Tridymite—Cristobalite—...—Haiiyne-— Melilite. CONTENTS XI Scapolite Group. Zeolites: Analcine—Heulandite—S tilbite—Chabazite—N...Silicates: Chain Structures (Inosilicates).302 Pyroxene Group: Enstatite—Hypersthene—Diopside—Augite—Pigeonite—-...-augite—Aegirine—Jadeite—Spodumene. Amphibole Group: Anthophyllite—Cummingtonite—Grunerite—Tremolite-...e—Lamprobolite—Riebeckite—Glaucophane. Epidote Group: Zoisite—Clinozoisite—Epidote—Piedmontite—Allanite |
 | | Book (volume) |
| NORTInHIwo AME A Volumes John Sinkankas _ GEMSTONES OF NORTH AMERICA In Two Volumes ® Volume I Gemstones, of...of all the mineral treasures to be found in North America, are perhaps the most fascinating—and the...worthy of the name. Some, like the emeralds of North Carolina, the colorful and fabulous tourmalines and...above all, easily read and understood, GEMSTONES OF NORTH AMERICA, Volumes I and II, will be welcomed as a...abroad are becoming so scarce and expensive that North America has developed into a major exporter rather |
 | | Journal (issue) |
| always will owe Mary Hunter Austin, a representative group of her friends and associates have put into words...bring in the snakes for the dance I was sent to the north with a very stern old priest. We had spent the night...south- for lunch or dinner. western portion of North America and acWe still have the Dutch oven but neither...about the existence of any Fultonville, N. Y. among North American Indians. Dear Mr. Henderson: I was manager...Siskiyou In the last Desert I note what you say county for many years, and nearly always about sleeping |
 | | Journal (article/letter/editorial) |
| birefringence of chlorites. The complete study of a mica sample is often necessary' either for purely scientific...facilitated by the fact that the members of the mica group have some characteristic properties in common...can be made concerning the chlorites, though this group is less homogeneousand less well known. Winchell...necessaryfor knowing the position occupied by a mica in Winchell's classification. At the same time,...measurementsgive a fair idea of the chemical compositionof the mica. It has been thought that, for both reasons, the |
 | | Report (issue) |
| BBAR GIAKBS COUINT Yee cele ewe ds IBDN BEWAH. COUNTY 1M nook oe 0d ee a 0 ee ae ee ie yee IBUINGTRUAINE...ee BONNER (COUNTY. Ci. 0 ee es et ee BONUNB VAMGIEES (COUNTY 2.5 kool ee BOUNDARY: COUNTY. cis -t:50...EIMOR WC OUINDM re oon Res Se ee ee ce pr RREMONT COUNTY eet. 1.30 ...105 125 130 130 (SQODING "COUNTY: oo. ene et See ee ae ee ee DATO COUNTY 25. SRR ciel c eS a eee esee...esee a a a KO OTMINAT “COUNTY ©.soe. eas, ee eh eI Ne TTA DAI CO TUINEDSY ood Re oN are A re TEMES COUN |
 | | Book (volume) |
| tH MSTONESof - NORTH AMERICA ~ VOLUME olor phot raphs yo. Erica and. Harol d Van I [iL Albuquerque...87109 N.M. N_E. Bivd. Gkapats GEMSTONES of NORTH AMERICA ~ NASMI EPPA GEMSTONES OF THE WORLD...+ GEMSTONES OF NORTH AMERICA, by John Sinkankas ON@“THE VOLUME III COVER North American gems from...amethyst (left, upper group) which measures about 25 mm (1 in.) across. TOP GROUP. Green fluorite (121...(25.56 ct), Sweet Home Mine, Colorado; colorless scheelite (19.66 ct), Kern County, California; octagonal |
