 | | Journal (article/letter/editorial) | | DepositsNear Ouro Preto, Minas Gerais, Brazil DoNAn) R. O•.SEN Abstract Topazdeposition near Ouro Preto,Minas...Minas Gerais,Brazil, tookplacein the Sabar/• formation,a Precambrian phylliteof considerable compositional...wasproduced concurrently with andslightlyafter the topaz. Quartz andmuscovite, whicharealwayspresent in thetopaz-bearing...hasreduced the originalhydrothermal suiteto a mixtureof quartz, topaz, sericite, and kaolinite. Introduction...pegmatiticorigin. R. F. Johnson The precious topazdeposits near Ouro Pretoare and suggested (1962) recognized the difficultyof |  | | Journal (issue) | | Moore Recent discoveries of hydroxylherderite in Minas Gerais ..............................................R. P. Richards Famous mineral localities: the Ouro Preto topaz mines ...................................typically abraded specimens you’ve found in the old mine dumps. And you’ve probably looked long and hard...Everyone has heard repeated warnings about entering old mine workings. But, face it, those deep, open shafts...glittering crystals or an overlooked vein of goldbearing quartz that would not only provide spectacular specimens |  | | Book | | Natural, Cultured and Imitation Alexander E. Fam Quartz Michael O'Donoghue Also availablefrom Butterworth-Heinemann...Egypt 132 Argentina 132 Australia 133 Austria 135 Brazil 135 Bulgaria 155 Canada 156 Commonwealth of Independent...familiarity with Brazil and the importance of the 'Imperial' topaz deposits at Ouro Preto, Brazil, in the world...information, and, hopefully, will stimulate some to do further research on this fascinating gem. When beginning...assumed importance) in the trade of deposits in Brazil and the former USSR, particularly those of pink |  | | Book | | Clopton, and the Authorffitle Index by myself. We do not intend to publish future indexes which are cumulative...On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...AJO Famous mineral localities: the New Cornelia mine, Ajo, Arizona (by W. J. Thomas & R. B. Gibbs) 14:283-298...ALLEN, GEORGE B. --and W. Hunt: The Tonopah-Belmont mine, Maricopa County, Arizona 19:139-144 ALLGOOD, GENNE...Allgood, C. Williams: Ramsdellite from the Mistake mine [Arizona] 14:333-335 ALLGOOD, ROBERT W. -with G |  | | Journal (issue) | | Luzonite Pandaite copper arsenic sulfide Chinkuashih mine, Keelung, T aiw an 4x5 $ 5 0 .0 0 , 2x3 $ 2 0 .0...ra y, m etallic luster, n early pure Scholzite Quartz hydrous calcium zinc phosphate 40 miles S .E ...ew H aven, C onnecticut. B lum ’s book D ie P seu dom orph osen des M in eralreich s which appeared in...lina: Buoy #1 m ine Ledford C ove m ine Big Ridge mine A llm an C ove m ine is requested to send sm all...witness. 2 FINE MINERALS AND GEMSTONES direct from Brazil OCEANSIDE GEM IMPORTS, INC. 426 M arion Street |  | | Catalog/List | | unless otherwise stA.ted. No charge for packaging. We do not charge V.A.T. Specific enquir:bes are welcome...green micro' s and crusts on white Barytes. (Clara Mine Wolfach, W.Germany) 1-tolins £3.50 19 4 ALABANDITE...white rhombic crystal about 7mm across. (Amelia Mine, Santa Rcsa, B.C. Mexico) £3.60 21 8 ALM&�DINE...402 AMA ZONITE (microcline) pale blue mass with Quartz. (Blue Sea Lake, Gracefield , Qµebec Canada) 1x240p...AMETHYST (variety of Quartz) pale purple crystals on quartz. (Minas Gerias Brazil) 2x2 £3 2x4 £6.00 ANHYDRITE |  | | Journal (article/letter/editorial) | | and C. Sadun Gerzon Delgado, A. Valentina Rivera, Trino Suarez, and Bernardo Fontal S. Philippo, J. Naud...trace c. \lracesv3\demoscan cpi Mixed felspars and quartz • • ii-.ii. .. i^i^flWW^B 01 31 1? c 600-...G653: Flat powder samples at room temperature Quartz capillaries up to 900°C Flat powder samples from |  | | Report (volume) | | coop eration w ith th e Dir eccion d e Mont es, Minas, y A[!uas Ministerio d e Agricultura under th e..._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___ _ Bair mine ___ ______ __________________ ----------------L:t...________ _ Trinid ad di t ri ct __ ______ _ M er ced e mine ___ ______ _ amag i.i Y- -------- - -----------...· ____ _ Ore depo i t . _____ _ Cubcfia" mine. . . Datil mine ________ _ Jo: fina m i ne.. _______ _ and...min e __ Je:u mine __ P olari : min e --------'h c,·crc dist ri ct. ..•. C hcverc mine _____ _ Jav ier |  | Irace, Andrea, Monegato, Giovanni, Tema, Evdokia, Martinetto, Edoardo, Gianolla, Daniele, Vassio, Elena, Bellino, Laura, Violanti, Donata (2017) Unconformity-bounded stratigraphy in the Plio-Pleistocene continental record: new insights from the Alessandria Basin (NW Italy) Geological Journal, 52 (2) 177-206 doi:10.1002/gj.2744 | Journal (article/letter/editorial) | | crystalline basement rocks (mainly gneiss, granitoids, quartz schists, micaschists, phyllites), ophiolitic units...Serpentinite Metabasite Prasinite Quartz Quartzite Quartz mica schist Quartz arenite Eclogite Gneiss Acidic...source area dominated by crystalline rocks with quartz and quartzite clasts >65%. 4.2.2. MRZ2 MRZ2 (up...Pebble petrography (Table 2) shows an abundance in quartz and quartzite clasts (>50%), with common occurrence...scarce in the older units, along with ophiolites and quartz-bearing rocks suggests a reorganization of the |  | Levin, A.I., Strel'tsova, T.V., Khakimov, M.Yu., Bokov, P., Dachev, Khr. (1973) Tectonics of the base of the Moesian plate. International Geology Review, 15 (11) 1255-1264 doi:10.1080/00206817309476014 | Journal (article/letter/editorial) | | deformed mica schists with garnet and staurolite, quartz schists, gneisses and amphibolites. These mesozonal...Veand drilling. It extends from south to north, trino) and -802 m (well 32 Dolina). According from the...of the Moesian plate. Only within the Varna basin do the faults have submeridional and roughly latitudinal |  | | Journal (article/letter/editorial) | | Vols. 1-10, 1986-1995 Precise angular control of quartz-cutting by X-rays. — William Parrish and Samuel...expansion coefficients and Gruneisen parameters of quartz at high temperature by X-ray method. — Nabil N...methods on the 101 X-ray powder diffraction line of a-quartz. — Stefano Battaglia, Marco Franzini, and Leonardo...ruthenium (II). — Gerzon Delgado, A. Valentina Rivera, Trino Suarez, and Bernardo Fontal; 10 (3), 178-9. 159...detection and quantification of low concentrations of quartz in dolostone by X-ray powder diffraction. — Jeffrey |  | | Journal (article/letter/editorial) | | Vols. 1-10, 1986-1995 Precise angular control of quartz-cutting by X-rays. — William Parrish and Samuel...expansion coefficients and Gruneisen parameters of quartz at high temperature by X-ray method. — Nabil N...methods on the 101 X-ray powder diffraction line of a-quartz. — Stefano Battaglia, Marco Franzini, and Leonardo...ruthenium (II). — Gerzon Delgado, A. Valentina Rivera, Trino Suarez, and Bernardo Fontal; 10 (3), 178-9. 159...detection and quantification of low concentrations of quartz in dolostone by X-ray powder diffraction. — Jeffrey |  | | Journal (article/letter/editorial) | | Vols. 1-10, 1986-1995 Precise angular control of quartz-cutting by X-rays. — William Parrish and Samuel...expansion coefficients and Gruneisen parameters of quartz at high temperature by X-ray method. — Nabil N...methods on the 101 X-ray powder diffraction line of a-quartz. — Stefano Battaglia, Marco Franzini, and Leonardo...ruthenium (II). — Gerzon Delgado, A. Valentina Rivera, Trino Suarez, and Bernardo Fontal; 10 (3), 178-9. 159...detection and quantification of low concentrations of quartz in dolostone by X-ray powder diffraction. — Jeffrey |  | | Journal (article/letter/editorial) | | Vols. 1-10, 1986-1995 Precise angular control of quartz-cutting by X-rays. — William Parrish and Samuel...expansion coefficients and Gruneisen parameters of quartz at high temperature by X-ray method. — Nabil N...methods on the 101 X-ray powder diffraction line of a-quartz. — Stefano Battaglia, Marco Franzini, and Leonardo...ruthenium (II). — Gerzon Delgado, A. Valentina Rivera, Trino Suarez, and Bernardo Fontal; 10 (3), 178-9. 159...detection and quantification of low concentrations of quartz in dolostone by X-ray powder diffraction. — Jeffrey |  | | Journal (issue) | | Seelite, a new uranium mineral from the Talmessi mine, Iran, and Rabejac, France .......................must be submitted loose in numbered en velopes. Do not write on the front or back of photos; doing so...emphasis or clarity, and (d) proper names, e.g., mine levels. 8. Credits. Caption data for specimen photos...5, p. 333-335). New minerals; what collectors can do to help (vol. 23, no. 1, p. 2-3). So you think you...to reduce expenses everywhere possible. One way to do this was to stop pumping water from the extensive |  | | Report (issue) | | compressor, headframe, and dump at the old Melville mine near l,Jilderness, 0range County. (photograph from...VAEY FROM PAPSR VERTICAL EIIHER NU OR S€. TT1E QUARTZ VEINS 'HICKN€SSES STRTKE FROM ! ]O 18 M (3 TO THIN...SOUTH OF TH! POAO. AGEE TRACT (See Turpin Creek Mine) COTMOOIIY INTORMATION coMMootTtEs PRESENT.. -... IT VAS ONLY A SilALL AMOUNT At I FN MINE (See Greely Mine) ANALYITCAL OATA SOURCE EEFER€NCE.. VIRGINIA...PROSPECT VIRGINIA SCALE OF TIL€S ABANDONED GOLD MINE OR BUCKINGHAM COUNTY M r INE t2 VIRGINIA |  | Festa, Andrea, Pini, Gian Andrea, Dilek, Yildirim, Codegone, Giulia, Vezzani, Livio, Ghisetti, Francesca, Lucente, Claudio Corrado, Ogata, Kei (2010) Peri-Adriatic mélanges and their evolution in the Tethyan realm. International Geology Review, 52 (4) 369-403 doi:10.1080/00206810902949886 | Journal (article/letter/editorial) | | overlain by Upper Jurassic radiolarites, shales and quartz arenites (Timpa delle Murge Formation), black shales...Remitti et al. (2007) and Vannucchi et al. (2008). They do provide examples of tectonized olistostromes. The...Internal Ligurian units, northern Apennines). They do not have a ubiquitous and continuous distribution...true mélanges. Broken formations – tectonosomes do not contain exotic blocks, and are conceptually more...points about this group of mélanges can be discussed: do they occur in a particular geodynamic setting, and |  | | Journal (article/letter/editorial) | | occur in a slaty or semi-metamorphic condition as do the Triassic rocks in some places on the eastern...rounded granitic conglomerates frequently occur as they do in the Trias, and the nature of the included fragments...of the ammonites. II. TIIE JcaASSlC Pr.X~T-BC.,tRINO BEDS OF NEW ZEX:SA~'9. An extremely impoFmnt monograph...consist mainly of granophyre and other kinds of quartz-porphyry, and even graniteporphyry. No rocks of...a part in the Jurassic of New Zealand as t h e y do in t h a t of the !V[oluccan Islands. G. Bcehm says |  | | Book | | not fluoresced. Hence, fluorescence had nothing to do with it: there was something that af fected the...the substance ol the electrodes.’ Becqucrel’s rays do not require any electric potential, either large...These rays must possess energy as all other rays do. And does not this mean that radium is constantly...of its charge e to the mass m. However, since we do not know the speed of an alpha particle even I I...roughly 3,600 times less than for electrons. Since we do not know of any charge that is less than that of |  | | Book | | argue, each persisting in his own opin ion. “ What do you mean, there’ s no magma?” “ And what about Etna...the uni verse, which have essentially nothing to do with science.... It is conceivable and admissible...language, then what were we, beginners in science, to do! Soon we were utterly engrossed in the work of the...geological proc esses took place in the same way as they do now, geologists come to the conclusion that wherever...But when we investi gate now cold magma hearths we do not consider that the intrusive rocks constituting |  | | Report (issue) | | 0 • '7 / GOLOGICAL S• il ..sTON, •; a R 10 DO) USGSLIBRARY REST ON ZtO .4) .1? - / 11 1 111...the Meruoca and Mocambo granites, northeastern Brazil, by Alcides N. Sial and Leon E. 398 Long 372 Preliminary...Fission-track, K-Ar and Pb-U mineral ages from Danta Mica Mine pegmatite (Bhunas), central Rajasthan, India--a...the flask was then made up to a known volume in a quartz volumetric flask. The boron content was determined...using repurified analytical grade readents and all-quartz apparatus, it was found that the conventional chemical |  | | Report (volume) | | chronostratigraphic research. provide a more time than do the future of focus Radioisotopic ag A precise and...(Axesmith & Kroehler 1988; Lucas 1997, 2006), these zones do allow broad correlation of lower Chinle Group and...nonmarine Triassic ostracods, such as Lutkevichinella, do have ornamentation and may be more readily separated...the world. Paleobiology, 33, 397-413. FuRIN, S., PRETO, N., RIGO, M., ROGHI, G., GIANOLLA, P., CROWLEY...detailed basis for subdivision of Triassic time than do the seven stages, The Mesozoic Era begins with |  | | Book | | represent terminal shrinkage, since the attenuated cells do not show the elongation typical of extant Rivulariaceae...rock, allothigenous constituents, ooids and spar do not play any significant role in the build up of...not convincing when merely stating that "The algae do not even prove that the waters were salty as lime-precipitating...binding detrital particles ( ooids, shell fragments, quartz grains), whereas many others, like the cases reported...D avis, R .A.: Algal stromatolites composed of quartz sandstone. J . Sedimentol. Petrol. 38, 953-955 |  | | Book | | com¬ prehensive work was to gather from scratch Why do we need glossaries, and repeatedly re¬ vised editions...(b) Water entering the abrolhos A term used in Brazil for a mushroom-shaped barrier lithosphere by any...frozen each winter the syn. of quartz monzonite of U.S. usage (i.e. quartz as 10-50% of the felsic minerals...is not presently erupting but that is expected to do so. There diversified groups as a result of evolution...aeration porosity The volume of interstices that do not hold adularization Introduction of, or replacement |  | | Journal (volume) | | The arning Brazilian Expedition. winced III. bioett do Monte Negro, J: Lua walk Micah the Natural oae...E D. Cope. + « . ITIO, 1192 Rock Inscriptionsin Brazil. peA E . mC, ie n ac a COT s v ve a + + 1203 The...jugular, but in recognition of their uselessness they do not prevent regurgitation of blood nor liquids from...in the classical course, - These tottering schools do not seem to have asked themselves wh y a half million...rats by them. I think it is very probable that they do catch and eat birds. They are very large and ferocious |
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