 | | Report (issue) | | - Warren Finch Uranium Deposits in Proterozoic Quartz-Pebble Conglomerates - Desmond Pretorius Vein-type...mbH in Frankfurt am Main, Federal Republic of Germany, and his colleagues who assisted, deserve special... M. Moreau, F. Tona The Pandanus Creek uranium mine, Northern Territory, Australia ......... 77 B...Geology and genesis of uranium deposits at the Pitch Mine, Saguache County, Colorado .......................the Southern Black Forest, Federal Republic of Germany ............................... H.W. 247 Bültemann |  | | Journal (issue) | | AMERICA Dual-Color Double Asterism in Corundum and Quartz Photomicrography Techniques and Equipment Ruby...Dual-Color Double Stars in Ruby, Sapphire, and Quartz: Cause and Historical Account Karl Schmetzer, Martin...Purple scapolite • Synthetic star sapphire with diffusion-induced color and star • Partially filled blue chalcedony...• Unusual combination of inclusions in synthetic star sapphire • Diamond slices • Large Namibian demantoid...Ren Lu Wuhan, China Elisabeth Strack Hamburg, Germany Our Canadian goods and service registration number |  | | Journal (issue) | | Lanka|Quartz with a tourmaline ‘pinwheel’ inclusion|Viewing acicular inclusions in 12-rayed star sapphires|Black...cm in diameter, from Unterhaching, near Munich, Germany) is set with thin, doubly polished garnet plates...Eberle, © Archäologische Staatssammlung, Munich, Germany. p. 586 S. Bruce-Lockhart photo ARTICLES ... Pasadena, USA; Karl Schmetzer, Petershausen, Germany; Dietmar Schwarz, Federated International GemLab...Elisabeth Strack, Gemmologisches Institut Hamburg, Germany; Tay Thye Sun, Far East Gemological Laboratory |  | | Book (edition) | | tetrabromide. crystal. A as macroscopic genitic quartz heavy liquid used for specific-gravity determinations...many varieties of chalcedony (cryptocrystalline quartz). Best known in its curved, banded form, it also...occurring In gray, reddish or brownish alpha quartz. Quartz which has formed at less than 573°C. in veins...and large pegmatites (Dana). Includes most of the quartz cut as gems. Atomic varies Strongly gent, 0.059...structure GEMOLOGY when they change to topaz quartz. Other authorities with less practical experience |  | | Journal (issue) | | occurred in a multitude of narrow greisen veins and quartz stringers in the roof zones of the biotite-granite...reports that these primary deposits are located in quartz veins, stockworks and greisens, within or near...aquamarine crystals, white to pale blue topaz and smoky quartz crystals occur in narrow stringers and thin layers...the granite hills. The granites consist mainly of quartz, albite and orthoclase with less than 5% mica (siderophyllite)...of Plateau State the aquamarine, topaz and smoky quartz crystals occur in fissures, joints and shear zones |  | | Book | | Litchfield County, where good crystals were taken from quartz veins in a variety of metamorphic, plutonic and...Litchfield, where a mass of white quartz on a ridge had once been mined for quartz, and large ilmenite masses...ilmenite crystals to 7 .5 cm in matrix of massive quartz from these dumps-adding that, in his judgment,...Springfield show ( 1995: 582). Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's...property of, the old Madawaska uranium mine (called the Faraday mine before 1964). The mineral assemblage |  | | Book | | concentric rings and Malachite. Topaz crystals with Quartz. Specimens in United States Azurite Smoky National...their artistic treatment apart and combined, their im- portance in society, commerce, and the arts, their...the market. At the present day, the Jagersfontein Mine, in South Africa, produces Diamonds of pure water...the then market value of the stones, probably in Germany, or in the European markets in general. KLUGE'S...distribu- Value, as a rule, small. Quartz A. Crystallised quartz a. Rock-Orystal b. Amethyst Stones |  | Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872 | Book (edition) | | Fritz: Bergakademie Freiberg, Freiberg, Saxony, Germany. Donald B. Hoover: U.S.G.S., Federal Center, Lakewood...Institut fur Mineralogie, Ruhr Universitat Bochum, Germany. Duane Mellor: Geology Library, Yale University...Berlin, Germany. Peter Susse: MINABS, Inst. of Mineralogy, Univ. of Gottingen, Gottingen, Germany. C. Sheldon...Pennsylvania. Hans J. Wilke: Eppertshausen/Hessen, Germany. Wendell E. Wilson: The Mineralogical Record, Tuscon...Especially when the mineral species is common, such as quartz (75.1.3.1), many varieties (jasper, onyx) are known |  | | Journal (issue) | | Tanzania • An engraved emerald • Unusual rutilated quartz • Rubies and ruby deposits of eastern Madagascar...pyrochlore inclusions • Vortex (Yogo Gulch) sapphire mine update • “Canary” tourmaline from Malawi • Bismuth-bearing...diamond imitations from Brazil • Enamel-backed quartz as a star sapphire imitation • Goldschmidt conference...Helena, Montana Karl Schmetzer Petershausen, Germany C. W. Fryer Santa Monica, California John I....materials—new synthetic rubies, sapphires, emeralds, and quartz varieties, to name but a few. Russian high EDITORIAL |  | | Journal (issue) | | name to the agate. T h e R o m a n invaders of Germany discovered that the agates from the hills around...to be about 6, for it was readily scratched by quartz a n d doubtfully by feldspar (orthoclase). T h...to Miss Elizabeth Strack of Idar-Oberstein, W. Germany. The Rayner Prize in the preliminary examination...MEMORIAL MEDAL Elizabeth Strack, Idar-Oberstein, W. Germany. QUALIFIED WITH DISTINCTION Arps, Charles Edward... U.S.A. Strack, Elizabeth, Idar-Oberstein, W. Germany Trenholme, Russell Shannon, Tokyo, Japan QUALIFIED |  | | Book (edition) | | for immediate loss on liquidation as large as the upper end of the range of in grading error. Only objective...usually originates deep in the Earth, below the upper layer called the crust. Magma may have varying composition...example of this is the mineral quartz, the most common mineral on Earth. Quartz, in the form we see as component...characteristic of quartz vibrates too rapidly to hold together in the pattern of the quartz structure. An...composition as quartz but a different structure that is stable at higher temperatures than the quartz structure |  | | Book | | not just a picture book. Rather, it is a veritable mine of information, telling everything the collector...you If you plan to vIsIt an operating quarry or mine where a permll Is required make the necessary arrangements...LAKE BAILEY N I DELAWARE MINE DUMPS IOATOUTE CHLORASTROUTEI 2 AMYGDAlOID MINE DUMPS 3 AGATE HARBOR (AGATES...(AGATES THOMSONITE ON BEACH\ )l MUD VLAKE TO MANDAN MINE - HARD SURFACE Field drawing to locate a collecting...frlled with geodes lined with glittering calcite or quartz. Otten these can be found where they have been |  | | Journal (issue) | | BEAUTIFUL GREEN PERIDOTS -Arizona . YELLOW CITRIN£ QUARTZ _ BRAZIL :S! ::e~/uic~[!~u·u·t>'ac'~ a~f:1~~ ;;;...Rock labels include classification (igneous , s ed im entary or coming events Notices received after Sept...Mizzonlle•Scopolite Bl oodstone Tigereye Smoky Quartz Opol Axinite Limonile Pseudomorph Concretion Amethyst...Pirssonite - xi Phyllite Gostropod Rock Crystal Quartz - xi Coquino Obsidian "opoche tears" •Epsomite...Annual " Flaming leaves Rock Swap. " leib's Moonstone Mine. Rt. 3 e. of Saranac Lake. N. Y. Sept. 16 and 17 |  | | Journal (issue) | | CVD-grown synthetic diamonds • Synthetic rock crystal quartz bangle with unusual inclusions pg. 443 441 G&G...diamond • Trapiche muscovite • Parisite in Colombian quartz • Violetish blue spinel in yellow sapphire • Stars...Nantes, France Lucerne, Switzerland Hamburg, Germany Eloïse Gaillou Ren Lu Wuyi Wang Paris, France...black inclusion that can be seen through the table. Quartz, apatite, sulfides, graphite, rutile, fingerprint-like...ilmenite, or senaite) were captured by a transparent quartz crystal. Under polarized lighting, the mineral-filled |  | | Book | | bertrandite, galena, juonniite, orthoclase, pyrrhotite, quartz, tennantite, wolframite, zircon: V. N. Yakovenchuk...founding members of IMA. Hugo Strunz Unterw6ssen, Germany Foreword v ..: r m a n y YL'a rs of collcc1ing...Vivianite, b) mixture of Variscite or Wardite and Quartz [Chalcedony] Ablygonite = a) Amblygonite, b) Montebrasite...[Oligoclose] Ab l 00 = Albite [Plogioclose] Abakusz-Ko = Quartz (Chalcedony] Absite = thorian Brannerite Absah-Gel...bituminous Cinnabar Acemasor = Cinnabar Acentela = Quartz [Rock Crystal] Acerbodavyne = carbonate-deficient |  | | Report (issue) | | leading museums of the U.S., England, France, Germany, Austria, and Italy. Many folders have summaries...(1979). Probe analyses (1) from Broken Hill gold mine, Coromandel , New Zealand. ACANTHITE. Nikolaeva...(1979). Probe analyses (4) from Broken Hill gold mine, Coromandel, New Zealand. AGUILARITE. Sugaki et...6528 (1983). Probe analysis, x-ray data from Sanru mine, Hokkaido, Japan. AGUILARITE. Sugaki et al., J....65-77 (1982). Microprobe analyses (5) from Sanru mine, Hokkaido. AGUILARITE. Vassalo Morales and Borodaev |  | | Journal (volume) | | region that has produced so much placer gold, the quartz mines found so far have not been extensively worked...carried on in the mountains and at present both quartz and placer mining are active in such districts...the mountains above 3000 ft. GOLD QUARTZ MINES GEOLOGY The quartz mining districts of this county are...have reached 1200 ft, in depth at only one mine. Oro Fina Mine, last worked in 1922, has been the largest...of 700 ft., in the schist, However, the Zantgraf Mine, in the amphibolite schist at the border of this |  | | Report (issue) | | Pegmatite dikes Quartz veins Deposits in limestone and other Paleozoic or Mesozoic sediments Quartz veins —...Replacement deposits Contact veins Tertiary deposits Quartz veins Gold and copper ores along contacts Sedimentary...Dredging Drift Mines Hydraulic Mines Placer Mines Quartz Mines Manganese Bibliography Chapter II, Lassen...Geology of "Mother Lode" in El Dorado County Gold 2 Quartz Mines Placer Mines Lime and Limestone Marble ...Coal 3 21 Copper Gold, Silver and Platinum Quartz Mines »iii't Mines [ydraulic Mines Racer Mines |  | | Journal (issue) | | BARBARA OLLIS . . . . The "Pothole" Placers LOST MINE 3 . 5 By JOHN D. MITCHELL TRUE OR FALSE ENIGMA...Rock Shorty of Death Valley 27 PEGLEG DAY Lost Mine Hunt a n d Liars' Contest 28 LETTERS Comment...Militia." Deserted claims with their clay-colored mine-tailings dot the rocky slopes. Tottering galvanized...its richest strike, the Yellow Aster Mine. Until 1942, this mine poured $16,000,000 into the pans of its...accidental discovery of the fabulous Kelly Silver mine in the middle of the district again brought an eager |  | | Report (volume) | | Canada THE MINES HANDBOOK Meeting tbe Needs of Mine and Smelter Hundreds of plants on both American...(all types) Crushers Crushing Rolls NEW YORK Mine Pumps Oil Engines Sampling Machinery Screens Stamp...all the metals, and a corresponding expansion of mine work. The MINES HANDBOOK will hereafter be published...Tuckahoe, N. Y., April, 1920. Vll THE MINES MINE HOISTS HANDBOOK AND Years of experience in building...Wellman- Send for our Bulletin F. 5, "Electric Mine Hoists," and get in closer touch with W-S-M equipment |  | | | | Section; by EB. E. WRIGRT: .o0) 002 SS 349 XLI.—Bi-quartz Wedge Plate Applied to Polarimeters and Naccharimeters...$1.50 to $2.50; Rhodoehrosite, Kapnik, with pink quartz and calcite, 75c to $5 ; Cinnabar, Kapnik, $1.50...Stibnite and Barite, Felsobanya, $1.50 to $3; Gold in quartz, Verespatak, Abrubanya, $3 to $6. Remarkable...and Topaz, other Spinel, Sap- phires, Star-Sapphires, Star-Rubies, Pink Beryls, Tourmaline, Cat’s-eye...metal points aa are imbedded in ebonite plugs, the upper point being completely insulated by the ebonite |  | | Journal (volume) | | Section; by EB. E. WRIGRT: .o0) 002 SS 349 XLI.—Bi-quartz Wedge Plate Applied to Polarimeters and Naccharimeters...$1.50 to $2.50; Rhodoehrosite, Kapnik, with pink quartz and calcite, 75c to $5 ; Cinnabar, Kapnik, $1.50...Stibnite and Barite, Felsobanya, $1.50 to $3; Gold in quartz, Verespatak, Abrubanya, $3 to $6. Remarkable...and Topaz, other Spinel, Sap- phires, Star-Sapphires, Star-Rubies, Pink Beryls, Tourmaline, Cat’s-eye...metal points aa are imbedded in ebonite plugs, the upper point being completely insulated by the ebonite |  | | Book | | of geology: Astrogeology, including lunar geology, im¬ pact phenomena, meteorites, and those astro¬ nomic...funnel A. closed depression, similar to a solution upper side of the test of an echinoid or to the side of...ascribes a far ture. It usually occurs at the upper end of a drainage line. more complex origin to...aegirine. triode in the ebridian skeleton, (b) A star-shaped spicule, as of a sponge. actinodont Said...foot; 43,560 cu ft or 325,851 U.S. gal. Common¬ star shape in cross section. ly used in measuring volumes |  | | Book (edition) | | Haditsch, J.G. & Н. Maus (1974). Alte Mineralnamen im deutschen Schrifttum. Institut für Mineralogie und...Л1гп. 83, 190 (1998). Abakusz-6п = fiпe-grained quartz : moganite. Je Fourestier 1(1999). Aбbecacile =...Je Fourestier 1 (1999). Acentela = transparent quartz, де Fourestier 1 (1999). Acerado = Лу-ricн tetrahedrite...fine-grained banded quartz moganite, Strunz 197 (1970). Achates = fine-grained banded quartz s moganite, Дала...pellucida, nеЬиlоsa, colore griseo mixto = fine-grained quartz т moganite. Dana 6th, 188 (1892). Achat islыndischer |  | | Book (edition) | | University, D-10587 Berlin, Germany Private: AbergerstraBe 33a, D-83246 Unterwossen. Germany Fax: (+49) 8641 61030...Verlagsbuchhandlung (Nagele u. Obermiller), 70176 Stuttgart. Germany €9 Printed on permanent paper conforming to ISO...und Druck, TalstraBe 14, 72147 Nehren, Germany Printed in Germany Berlin, spring. 1941 H.Strunz Translated...discovered the law of constant interfacial angles in quartz. and Erasmus Bartholinus discovered the double...A2 12 6 7 8 9 Pm Pc Cm Cc Aa Pn Am An Cn Pa Im la le 10 11 12 13 14 15 P2/m P2 1/m C2/m P2/c P2 |
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Johannes Mine, Göpfersgrün, Wunsiedel, Wunsiedel im Fichtelgebirge, Upper Franconia, Bavaria, Germany