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| Mineralogy and Genesis of Vermiculite in Serpentinites of the Bohemian Massif in Austria* M. A. G6tzinger Institut...Mineralogie und Kristallographie, Universit~it Wien, Austria With 8 Figures Received February 28, 1986; accepted...the occasion o f his 80 th birthday Summary Vermiculite occurrences in the Bohemian Massif occur in ...te series of the Gf6hl unit. Three types of vermiculite occurrences are discernible on the basis of rock...and characteristic mineral associations: 1) vermiculite in leucocratic veins (pegmatitic rocks, plagioclasites) |
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| Printed in Austria Layer silicates from a rodingite and its blackwall from Przemi~6w (Lower Silesia, Poland):...metasomatic processes during serpentinization and serpentinite recrystallization E. Dubifiska 1 and A. W i...chlorite-vermiculite intergrade mineral occur in the vesuvianite from rodingite at Przemit6w (Lower Silesia)...abundant phlogopitederived intergrade chlorite-vermiculite in the blackwall documents the potassium-rich...Geology The Jordandw-Gogotdw serpentinite massif is the biggest of three serpentinite bodies adjacent to the |
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| with the leading raw materials sand plus gravel, quarry and dimension stones and limestones used for the...(Fig. 1). It has to be noted that among the term quarry and dimension stones there are also some hidden...rocks which formed the Precambrian through the Lower Carboniferous, when the Visean folding put an end...extension was at its maximum during the Devonian and Lower Carboniferous. Basic submarine volcanic activity...extending from Belgium, in the West, through the Ruhr District, Germany, to the Upper Silesian Coal Basin, Poland |
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| forsterite or sillimanite, expanded perlite or vermiculite with a high sorption capacity); 2· with the new...partial ablation of the surface causes cooling of the lower layers, which thus acquire a more resistant structure...(diorites to quartz diorites) which predominate in the lower layer of the continental crust, produces melts that...in alluvial sediments. 23 Graphite forms at lower temperatures and pressures than diamond (see phase...Metasomatic pegmatite does not always develop; at lower temperatures minerals of hydrothermal associations |
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| Garnets of East Africa 73 Rh.odolite of the Lindi District, Tanzania 76 Tsavorite Garnets 76 The Pyrope-...Tanzania 96 Red Dravite Tourmaline from the Narok District, Kenya 99 Uvite-Dravite Chrome Tourmaline 99 ...Province, Tanzania. 34 Figure 3. 7. Geologic map of serpentinite body southwest of the Gerevi Hills, near Umba...phlogopite mica found in a ruby from Mangari, Taita District, Kenya. 47 Figure 4.1. Typical Manyara (Maji Mota)...Tanzania. 121 Figure 9 .6. Faceted peridot from a serpentinite located at Kingiti, Tanzania. 125 Figure 9.7 |
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| zones) comprises anthophyllite-, actinolite- and vermiculite-bearing zones, whereas the second group related...almandine-rich garnet, tourmaline, margarite, vermiculite, anthophyllite, enstatite, chlorite, serpentine...inward from anthophyllite-, actinolite- and vermiculite-bearing zones (Fig. 3b). (2) Corundum-tourmaline-bearing...(Serp), anthophyllite (Ath), actinolite (Act), vermiculite (Vrm), hercynite (Hc), corundum (Cm) and corundum-tourmaline...Institute of Mineralogy, Salzburg University, Austria. Representative analyses of the analyzed samples |
 | Čopjaková, Renata, Prokop, Jiří, Novák, Milan, Losos, Zdeněk, Gadas, Petr, Škoda, Radek, Holá, Markéta (2021) Hydrothermal alteration of tourmaline from pegmatitic rocks enclosed in serpentinites: Multistage processes with distinct fluid sources. Lithos, 380. 105823pp. doi:10.1016/j.lithos.2020.105823 | Journal (article/letter/editorial) |
| beryl- Jo ur columbite pegmatites, all cutting serpentinite from the Moldanubian Zone, Czech Republic. Tourmaline...alkaline character of fluids promoted by host serpentinite was very -p likely the main factor affecting...behavior of B in granitic rocks enclosed in serpentinite and other compositionally contrasting rocks...lithotectonic units with distinct lithologies. (i) The Drosendorf Unit is structurally divided on the lowermost...Gföhl Unit, and occur rather scarcely in the Drosendorf Unit. lP The Moldanubian pegmatite field is |
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| Natural Resources and Life Sciences, A-1190 Vienna, Austria Institute of Applied Geology, University of Natural...Natural Resources and Life Sciences, A-1190 Vienna, Austria 4 Institute of Earth Sciences, Academia Sinica...formation of smectite, vermiculite, and interstratified chlorite-vermiculite, demonstrated by their presence...chlorite transformed to vermiculite through an interstratified chlorite-vermiculite phase. The surface soils...Heavy Metal, Paddy Soil, Serpentine, Smectite, Vermiculite. INTRODUCTION Serpentinites are formed by hydrothermal |
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| Tenderfoot mine (about 19131, Esterbrook copper district, Albany County. John Taylor collection. An ideal...Minerals was titled “The Copper Mountain Pegmatite District, Freniont County, Wyoming” and was in the JulylAugust...small area, they are grouped under the district name. District names are from Hausel (1986). Localities...Buttes: see The Buttes. Centennial (La Plata) gold district, 27 miles W of Laramie on State 130 to Centennial...industrial-gradediamonds, ColoradoWyoming State Line district, Albany County: largest crystal is approximately |
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| 130 Iodine 138 Sulfur Talc 260 265 274 Vermiculite 145 Magnesite & magnesia Manganese minerals...major producing districts, or a representative district if there are many. We name the chief mining companies...graphite supply must come not merely from one district but from a single mine. Thus the physical properties...problems faced by management of a gravel pit or stone quarry to alleged health hazards that affect the whole...ultramafic rocks stretching from the Baie Verte district of Newfoundland though the Thetford Mines, Black |
 | | Report (edition) |
| microscope by D.M. Lapham of a thin slice of serpentinite from Lancaster County showing olivine (blue-green...County, the Stillwell quarry in Lancaster County, and the Medusa Cement Company quarry in York County, are...Zircon Crystal 50 Diagramatic Sketch of Brinton Quarry Pegmatite 53 Geologic Cross-Section of West ...84 of Deweylite after Dolomite, Ceclar Hill Quarry 89 _ Limonite Pseudomorphs from Chestnut Hill...permission from the owners of the land, or from the quarry and mine operators, before entering to collect |
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| December, 1955 Zoned Hydrothermal Bodies in the Serpentinite Mass of Glen Urquhart (Inverness-shire)# By...visible or inferred mineral zoning occur in the serpentinite mass in Glen Urquhart. Their mineralogy and...of " ultrabasic magmas ". INTRODUCTION T HE serpentinite mass in Glen Urquhart is a pod-shaped intrusion...mass. These altered rocks grade off into normal serpentinite and are not in discrete bodies. They are described...described in the above paper. There are in the serpentinite intrusion in addition, six masses of more discordant |
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| by Lake Buchanan in 1938. The Terlingua mining district is noted for its rare mercury minerals. Mining...Temple, 6 miles W of Temple in abandoned limestone quarry; marcasite* (spear-point crystals; groups up to...cretions) (Schleh, 1967). Blanco County Coal Creek Serpentinite ( = Gould Davis Ranch), N W Austin County Raccoon...Minerals quarry), at Damon on Route 36, prominent hill, shallow piercement salt dome, open-pit quarry on N...an Indian stronghold. Sam Damon opened a small quarry in 1831, first oil well drilled in 1915. Sulfur |
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| Crystal . . . . . . .. Diagra1natic Sketch of Brinton Quarry Pegmatite Graphic Granite Geologic Cross-Section...Pseudomorphs of Deweylite after Aragonite. Cedar Hill Quarry . . . . . . . Calcite Crystal Forms "Picrolite"...permission from the owners of the land, or from the quarry and mine operators, before entering to collect...have been taken from topographic quadrangles. A quarry or mine symbol designates the exact mineral location........,, ....... ...... " Open pit, mine, or quarry. Shaft-Tunnel entrance ----------~ ..... ' l' |
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| to 2 m thick, lie in fresh dunite and brown serpentinite. Most magnesite veins in dunite are unbranched...associated mafic rocksand Rock Units in the Vavdos District slicesof Paleozoicgneisses within the Vardar zone...oceanbasinduring Late Cretaceoustime. brown serpentinite (Fig. 3). Lesser lithological The easternpart...-. , .•..•-' 'v.-.-; •, ,,','•'•", brown serpentinite. The {oilowing petrographic description of duniteis...has, together with chromite, resisted the Vavdos district and more than 90 percentof the alteration. The |
 | | Catalog/List |
| mass of black crystals, some Mount Malosa, Zomba District, free standing. ______ ______ Malawi Black crystal...Arizona Pure green cleavage AMAZONITE Landsverk quarry, Evje, Norway Ixl 50p lx2£l 11 felspar group____________...£3 7 Pure black mica plate new Analysis , Saga Quarry, Tvedalen near ANNITE Mica__________ paper available...Chrysotile, pale grey-green Ixl £1 County Bridge Quarry,Lizard Mg Fe SiO_______ massive. _________ .Cornwall...1x2 £5 1x1 £2 2x2 £5.00 2x2 £2 Hingston Down Quarry,Comwall,England Grey massive in matrix South Crofty |
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| rock__________________--__-___-_--_ Silver Lake-Yucca Grove district..______________________ Southern Death Valley-Kingston...district_________ Inyo Range-Northern Panamint Range district._____-___Deposits associated with ultramafic rocks..._____________________________________________________ Chatsworth district, Murray County_____.______._-___-_--Other deposits...____--_-_-__---___-.____..-.._-_-_-_-----_-_-_--.-Gouverneur district..________________________.-___-_------Natural...Carolina______________________________________________ Murphy district.-__--___-__--_--_--___-___________________ deposits |
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| ~black cry~t~i;,o;-~;atrix. M~~nl Malo~O:. i:~n{ba District. IX I ins £5 2 AEGIRINE £10 Pyroxene Malawi lxl... _ . Pure black mica plate new Analysis , Saga Quarry. Tvedalcn near Ix I £3 I x2 £6 2x2 £ 12 7 AN!lilTE...- Creamy white micro crystals in cavirties Saga Quarry, Tvedalen, Norway Ix½ £3 59 BOEHl\lITE AIO OH inNatrolite...AMITE Rich brown fibrous in matrix. Found Meldon Quarry, lx2 £2 lxl £1 _ ~_Ca SJ2.._ __ __ some ycm ago...black plates in Axinite and or pink Meldon Aplite Quarry. lxl £2.50 lx2 CHLORITE _ _ __ __ ···· -·· _ __ |
 | | Report (issue) |
| and pyroxenite and their hydrated equivalents, serpentinite. In the past, chromite was produced from a number...pluton" and the "Elk Sweetwater Basin Creek vermiculite deposit"—The exposed ultramafic rocks of this...detailed map (scale 1:6,000) of the Elk Creek vermiculite deposit (within the Wolf Creek pluton) is provided...the northern part of the Virginia City mining district—The outcrops of these ultramafic rocks were mapped...the southern part of the Virginia City mining district—Body mapped by Hadley (1969) at a scale of 1:62 |
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| ...........................................87 District of Columbia ....................................Geologic sketch map of the Inyo-Panamint talc district, California .........................32,33 6....the southern Death Valley-Kingston Range talc district, California ....................................Simplified geologic map of the Ruby Mountains talc district, Montana .......................................Simplified geologic map of the Allamoore talc district, Texas .........................62,63 11. Geologic |
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| combining the commodity (lines) shown by numbers plus lower caps with the host rocks or structure (columns).... . . . . . . . . . . . . . . . . . 51.2.4. Vermiculite . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . 51.3.4. Vermiculite . . . . . . . . . . . . . . . . . . . . . . ...Vanadinite Vandendriesscheite Vaughanite Vauquelinite Vermiculite Vesuvianite Villiaumite Violarite Vivianite Volchonskoite...places. Aggregates, sand and gravel are followed by quarry and dimension stones (Prentice, 1990; Lorenz, 1991) |
| | Journal (article/letter/editorial) |
| combining the commodity (lines) shown by numbers plus lower caps with the host rocks or structure (columns).... . . . . . . . . . . . . . . . . . 51.2.4. Vermiculite . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . 51.3.4. Vermiculite . . . . . . . . . . . . . . . . . . . . . . ...Vanadinite Vandendriesscheite Vaughanite Vauquelinite Vermiculite Vesuvianite Villiaumite Violarite Vivianite Volchonskoite...places. Aggregates, sand and gravel are followed by quarry and dimension stones (Prentice, 1990; Lorenz, 1991) |
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| occurs in the northern part of an antigorite serpentinite and peridotite body, tectonically emplaced on...a metaclastic and carbonate sequence and the serpentinite body. A phase of ductile deformation that formed...followed by a brittle one, which formed schistose serpentinite. The sense of shear of the overthrusting metaclastic...the schistose serpentinite and the asbestos ore in the northern part of the serpentinite body. Slip-fiber...non-penetrating shear surfaces in the schistose serpentinite. The chrysotile fibers replaced antigorite "in |
 | | Journal (article/letter/editorial) |
| (antigorite) in pseudomorphs on vermiculite. It is formed out of vermiculite and is surficial in origin i...i occurring as a gradual replacement of vermiculite in lower parts of ancient weathering crusts of magnesian...white with a silky luster; its association with vermiculite suggested its origin in that mineral. Later on...Kovdor deposit. Here, too, both sungulite and vermiculite were described as hydrothermal (4). The peculiar...sungulite, in all instances, has been formed out of vermiculite— a fact established for certain deposits by other |
 | | Report (edition) |
| “old” Lime Bluff quarry, Muncy; right fibrous : tremolite, C. K. Williams quarry, Easton: bottom: calcite...oriented coatings of goethite, “old” Lime Bluff quarry, Muncy, (courtesy of Delbert L. Oswald) ADDITIONAL...edition of Mineral Collecting Cedar Hill in quarry where Dave had done IV much of his work PREFACE...permission from the owners of the land, from the quarry or mine operators before entering to collect. (Land...compilation. Finally, we acknowledge the many quarry and property owners who have aided the authors |
