 | | Report (issue) | | BOPOLU QUADRANGLE, LIBERIA " Prepared linaer cne auspites of the Government of Liberia and the Agency for... 1979 MINERAL MAP OF THE BOPOLU QUADRANGLE, LIBERIA By W. L. Coonrad, U.S. Geological Survey 1979...quadrangle is one of ten quadrangles covering Liberia (see index map) on which is compiled the mineral...geographic, geologic, and geophysical maps of Liberia published in the USGS folio series. Also included... DIAMONDS The Holland Syndicate explored much of Liberia during 1934-1935 and found both diamonds and kimberite |  | | Journal (issue) | | agate in doublets and jewelry • Diamond mining in Liberia • Zambian emerald update • Pargasite from Tanzania... imitating emerald • Lead glass–filled trapiche ruby • Myanmar Gem Emporium • Kurt Nassau (1927–2010)...The labradorites were reported to be from Modoc County, California. This area still has not been confirmed...to sunstone from Lake County, Oregon, which is immediately north of Modoc County. (Although the feldspar...known as the Ponderosa mine in northwestern Harney County. This labradorite also contains copper platelets |  | | Journal (issue) | | Segi Mary Cole Leonardo Lopez Norman Sevilla Ruby Contreras Luz Lopez Judith Shechter * Jim Cronk...the stories behind the jewels: An 8.66 ct Burmese ruby and diamond ring, from the collection of famed philanthropist...Cryo-Genie mine, near Warner Springs, San Diego County, California. Photo by Brendan M. Laurs. THE MAKING...channels. Exploration and grading protocols for ruby, sapphire, emerald, tsavorite, tanzanite, and alexandrite...DISCRIMINANT ANALYSIS Ruby Marble Mafic-ultramafic Mafic-ultramafic Metasomatite Ruby from Ankaratra placer |  | | Journal (issue) | | Mongolia|Sphalerite inclusions in quartz|Ruby from Liberia|Unstable yellow colour in sapphire|Petroleum...diffusion-treated spinel; a challenging Ramaura synthetic ruby; natu- What’s New ral diamonds found in a parcel...keyword. Gem types include natural and synthetic ruby, sapphire and spinel. Origins include 31 countries...‘The Koh-i-noor Diamond’, ‘Pearls from India’ and ‘Ruby Mines of Burma’. Prepared by Dr James Shigley, each...of several gem varieties, particularly spinel and ruby. During the 2016 Tucson gem shows, Steve Ulatowski |  | | Journal (issue) | | 10 Plate I Saionya Scarp Plate II Rokell River Series Plate III Boulder of Granitic Gneiss Plate...Noritic Complex . Plate V Banka Drill, Kilimi River Plate VI Trenching, S.W. of Saionya Scarp Plate...rests on the granite and is known as the Rokell River Series. In the north-west near French Guinea these...west coast of Africa between French Guinea and Liberia. Its climate is tropical and humid, with an average...width, the belt running parallel to the coast from Liberia to French Guinea. Within this belt, the rivers |  | | Journal (issue) | | rutilated quartz • Rubies and ruby deposits of eastern Madagascar • Ruby crystal with a mobile bubble...inhabits wide areas along the Chang Jiang (Yangtze) River. Using the new mussel, growers started to cultivate...along the Chang Jiang (also known as the Yangtze) River (figure 5). The provinces of Jiangsu, Zhejiang,...areas extend widely along the Chang Jiang (Yangtze) River, including the provinces of Jiangsu, Zhejiang, Anhui...from that of pearl farms along the Chang Jiang River. Pearl farmers carefully choose mussels with shell |  | | Report (issue) | | A253-A258 of this chapter. Numerous Federal, State, county, and municipal agencies and other organizations...Kenya______ ________________ ____________ 181 Liberia. __-_______-_--_.________-______.__182 Morocco...cooperators_-____ ---------_____-____ 209 State, county, and municipal cooperaters__________ 209 Other...silver-gold mining district in northwestern Elko County, has revealed evidence leading to a revision of...gneisses of Maryland near Great Falls on the Potomac River, north of Washington, D.C., by J. C. Reec1 , Jr |  | | Report (issue) | | A293-A298 of this chapter. Numerous Federal, State, county, 1and local agencies and other organizations and...studies-Continued Northern Rocky Mountains-Continued Snake River Plain and vicinity _____ -----Structural and geophysical...]{orea ____________________________________ _ 218 Liberia ___________________________________ _ 218 ____...cooperators ____________________________ _ 251 State, county, and local cooperators ______________ _ 251 Other...geochronologic studies in the Bodie district, Mono County, Calif., by M. L. Silberman and F. J. l{leinhampl |  | | Book | | . . . . . . . . . The Albanel Lake-Temiscamie River basin . . . . . . . . . . . . . . . . . . . . ....Gruss, H., 1973. Itabirite iron ores of t h e Liberia and Guyana shields. I n : Genesis of Precambrian...type area for the gneiss terrane is the Minnesota River Valley 4! 41 4; *i( 41 44 Fig. 2-2. Geologic...intrusion of granite and anorthosite, the Wolf River batholith, was emplaced in central Wisconsin about...Range Marquette Menominee Gogebic Gunflint Iron River/Crystal Falls Mesabi Cuyuna I ' Discovery Mining |  | | Book | | unfair. corrupts nations as well as individuals. Liberia, the People's Republic of the Congo (formerly... It is virtually impossible to do business in Liberia, Tanzania, or Sierra Leone without bribing officials...bonanzas. A well-placed pothole in the bedrock of a river bottom can make a fine drop-off place to catch the...picked up a shiny stone by the banks of the Orange River in Hopetown, Cape Province, South Africa. It had...south of the river diggings. This find was followed by others much closer to the Vaal River, at Dutoitspan |  | | Report (issue) | | ________ _ 25 26 26 26 26 27 27 27 29 30 30 Liberia-----------------------------------Malagasy Republic...Perce Counties __________ _ Idaho CountY-----------------Valley CountY-----------------Adams, Payette,...and Gem Counties ________________________ _ Boise County ___ --------------Ada, Owyhee, Elmore, and Custer...Spruce Pine district ____________ Madison County and Haywood County _____________________ _ Zirconia district...monazite belt in the Piedmont province __ Stokes County and Surry County_ Wilkes, Alexander, Catawba, Caldwell |  | | Report (issue) | | earthquake hazards reduction, geothermal energy, river-quality assessment, and water use, to name only...Geotechnical and geohydrological studies in Fairfax County, Virginia _____________________285 Puget Sound...ore in the southern Wah Wah Mountains in Beaver County, Utah, can be treated profitably. occurs in nickel...subeconomic. Similar deposits are common in the Black River Valley (Waller, 1976). Zinc distribution in coals...185,000 ha of peatlands in western Koochiching County, Minnesota, revealed a spotty distribution of deposits |
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