 | | Report (chapter) | | Siliceous rocks of the Culm Basin, Germany HANS-JI~IRGEN GURSKY Geologisch-Pal~iontologisches Institut...Darmstadt, Schnittspahnstrasse 9, D-64287 Darmstadt, Germany Abstract: The classic Dinantian cherts of the...the Rhenish Massif and Harz Mountains, Germany, were analysed for their petrography and sedimentology. They...and petrological aspects of Dinantian cherts in Germany have been studied by several modern authors (e...and chemistry of Dinantian siliceous rocks in Germany (Gursky 1992). Occurrence and geological setting |  | | Journal (issue) | | VII, pp. 334-338 (quartz after interstices from North 1926, Proc. Acad. Nat. Sci. Phil., LXXVIII,'pp....3A mold is defined by its matrix. Carolina). Chalcedony after interstices from Chester County, Pa., has...203-207. Discussion of the quartz pseudomorphs after calcite and barite common in the epithermal veins of the...products of parisite and synchisite,3 CaO after calcite,4 for natural occurrences of brucite after chrysotile5...after calcite type, also tetrahedrite after chalcopyrite, siderite and rhodochrosite after calcite, albite |  | | Journal (article/letter/editorial) | | quartz is reported from Russia. Pseudomorphs of chalcedony after datolite occur and are referred to as haytorite...alpine fissure veins. Associated minerals include calcite, quartz, prehnite, danburite, axinite, garnet,...stilbite, heulandite, pectolite, apophyllite, calcite,, and quartz, and its crystal aggregates often...rock at notable localities such as the Cheapside quarry at Deerfield, Franklin County, where it occurred...Massachusetts; fine specimens were also found at the Notch quarry at nearby Amherst. Similarly, datolite occurred |  | | Book | | immensely popular handbook of minerals appeared in Germany I obtained a copy fo! my personal library and was...far from a simple task because the "'Gewstones of North America. 8 artist must know minerals in order... You will be told that these are fragments of calcite crystals. Three minerals will be mentioned to you...consisting (apart from impurities) only of the mineral calcite. Granite is the bestknown example of a rock consisting...Pr..1iTE 2 Sulphur Abo/le Sulphur crystals on calcite. Below A specimen of massive sulphur. Both from |  | | Book | | in crystal form, e.g. the many crystal forms of calcite. Perfect models of crystals are only confusing...are some rocks (such as marble, composed only of calcite crystals) which are chemically homogeneous but...retain their inner crystalline structure, e.g. chalcedony. All minerals are solid with one exception:...they often become filled with quartz, agate or chalcedony. The largest part of the gases and vapour escapes...fissures. Well known minerals, such as quartz and calcite, originate at this stage and are known as /iydrothermal |  | | Journal (article/letter/editorial) | | a delightful surprise — one of those old time chalcedony geodes that made Tampa, Fla., famous in mineralogical...(almost black) botryoidal chalcedony which fl. green (both waves). "Chalcedony pseudo coral, Ballast Point...miles west of Hot Springs. Could this be red chalcedony?" — asks C. E. Braun, 5041 Dana Place, N. W.... C. Yes, the 2x2 inch dark red sawed slab is chalcedony. It is a nice specimen. GEORGIA — "Around Ball...another very fine calcite specimen from his large stock. This one is labelled: "Golden calcite 'nailhead Spar |  | | Journal (article/letter/editorial) | | son, while fishing along Big Walnut Creek 5 miles north of Greencastle, Ind., noticed a band of shale about...milky quartz, fluorescent calcites, dogtooth calcite, chalcedony in many colors, gypsum, dolomite, pyrite...be. KENTUCKY: Nice white masses of cleavable calcite occur at the Delhi-Babb fluorite mine near Salem...aqueduct. In the last issue, Mr. Edward C. Foster, 15 North St., Williamsburg, Mass., had an item (p. 379) that...Watonwan Co. (near St. James) ; Winona Co. (gravel pit north of Winona). MISSISSIPPI: Ironstone concretions, |  | | Catalog/List | | 20xl0nun. 40x40x25nu11. £28. (b) 14) CALCITE var PHANTOM CALCITE. Santa Eulalia, Chihuahua, Mexico. Nice...£20 (c) 15) CALCITE var ANGELS WINGS. Geevor Mine, St Just, Cornwall. A fine mass of calcite made up of...White collections. 90x70x40nun approx. £48. 16) CALCITE. Frizington, Cumberland. The top of a thin hematite...hematite matrix showing about a hundred off white calcite xls to 20nun, many being doubly terminated. Xls...Old label attached "Calcite-D-Term Frizington Cumbd". 120x70x30mm. £275. 17) CALCITE. Egremont, West Cumberland | | | Book | | 3 Distributed in Australia by Rigby Limited 30 North Terrace, Kent Town Adelaide, South Australia 5067...in crystal form, e.g. the many crystal forms of calcite. 7 a i ■ I II I g 1 I I3 . Perfect models...arc some rocks (such as marble, composed only of calcite crystals) which are chemically homogeneous but...retain their inner crystalline structure, e.g. chalcedony. All minerals are solid with one exception: mercury...they often become filled with quartz, agate or chalcedony. The largest part of the gases and vapour escapes |  | | Journal (issue) | | PRESENT Feliks M. Ibragimov KAZAKHSTAN LANDSCAPE CHALCEDONY Boris K. Kazurov THE HISTORY OF GEMMOLOGIC EXAMINATION...PPA"Leo Tolstoy" Tula, Russia. 4 Cover 1 Cinnabar, calcite. 4x З cm. Toltgin deposit, Guizhou Prov., Chinn...Company А subsidiary of Excalibur Mineral Co. 1000 North Division Street Peekskill, NY 10566 USA Теl: (914)739-1134...(morganite), wollastonite, danburite, datolite, quartz, calcite, corundum, microcline, plagioclase, spodumene,...Yana Baa. (right) Photoluminescence of Mп" in calcite; crystal aggregates 15 cm in size. Vеrklinii Mine |  | | Journal (article/letter/editorial) | | Ruhr-University Bochum, Germany 2 Department of Mineralogy, TU Bergacademy Freiberg, Germany Received March 6...Cretaceous quartz sand from Ottenstein (north-western North-Rhine Westfalia) using digital images (fraction...Cretaceous sands of the Kuhfeld-Formation in W Germany, digital images of initial as well as final CL-colours...kaolinite-cement (K) in a Rotliegend-sandstone of NW Germany; f CL-images of the four types of zircons recognized...sample of the Triassic ‘‘Buntsandstein’’ of SW Germany (Odenwald), CL-spectrum in Fig. 6c; g crossed nicols |  | | Journal (issue) | | (]OHi.,,/~ jo,,, ,4,w,J, l9J/..2. CHIPS FROM THE QUARRY .................................................Association 122 ROCKS AND MINERALs Chips from The Quarry D-EALERS NOW IS YOUR OP.PORTUNITY! It is most...efforts to tell us something about an old mine in North Carolina that had been reopened not so long ago...crystals in rock from Ehrenfriedersdorf, Saxony, Germany ; while the most interesting of all, perhaps, was...was from the Sampson Mine, Andreasberg, H arz, Germany ; another, of a pale green color was from the Bhore |  | | Journal (article/letter/editorial) | | isotopes of deep geothermal saline fluids in the Upper Rhine Graben: Origin of compounds and water-rock interactions...Abstract-Deep boreholes (52870 m) in the Upper Rhine Graben produce medium-temperature ( 120150°C) saline...The Cronenbourg borehole is located around 5 km north of Strasbourg city center. It has a producing level...about 160°C. The total depth of the Biihl hole in Germany is 2655 m; it produces fluids from Buntsandstein...temperature of about 115°C. The Bruchsal holes in Germany were drilled for geothermal exploitation; GB 1was |  | | Book (volume) | | reserved. H., Hofbuchdruckerei, Cothen-Anhalt (Germany). PRECIOUS The Precious Stones. Precious others...cannot such press as the agate and stone chalcedony against the disc are not with cut in...hollowed out The vacant. man form the on left Germany with to be have posture greater a window...with position operation same the against chalcedony progress The final improvements position...in worn be longer a stones when topaz chalcedony diamond with for respect precious or rose-topaz |  | | Book | | zeolite mineralogy was done, at that time, in Germany, Italy, France, and Great Britain. Because of differences...connected by minute veinlets containing phillipsite, calcite, and smectite. Jointing of the columns across zeolite-filled...Lower Miocene columnar basalt in the Narre Warren Quarry, near Melbourne, Australia. The minerals are believed...fault surfaces to produce zeolite-lined veins. Calcite commonly is a late forming mineral and fills many...Mehegan et- al~, 1982; Kristmannsd6ttir, 1982). Calcite and m,ontm,orilonite clay were fo,u'nd throughout | | | Book | | zeolite mineralogy was done, at that time, in Germany, Italy, France, and Great Britain. Because of differences...connected by minute veinlets containing phillipsite, calcite, and smectite. Jointing of the columns across zeolite-filled...Lower Miocene columnar basalt in the Narre Warren Quarry, near Melbourne, Australia. The minerals are believed...fault surfaces to produce zeolite-lined veins. Calcite commonly is a late forming mineral and fills many...Mehegan et- al~, 1982; Kristmannsd6ttir, 1982). Calcite and m,ontm,orilonite clay were fo,u'nd throughout |  | Gigoux, Morgane, Brigaud, Benjamin, Pagel, Maurice, Delpech, Guillaume, Guerrot, Catherine, Augé, Thierry, Négrel, Philippe (2016) Genetic constraints on world-class carbonate- and siliciclastic-hosted stratabound fluorite deposits in Burgundy (France) inferred from mineral paragenetic sequence and fluid inclusion studies. Ore Geology Reviews, 72. 940-962 doi:10.1016/j.oregeorev.2015.09.013 | Journal (article/letter/editorial) | | cavities and microscopic vugs. At Antully, the blocky calcite initially cementing the sandstone was partially...(Sizaret et al., 2004; Cathelineau et al., 2012), Germany (Meyer et al., 2000; Schwinn and Markl, 2005; Dill...been studied in detail with samples from the Toyot quarry (Fig. 4B). In terms of fluorite tonnage, the Marigny-sur-Yonne...de Lafont and Lhégu, 1980). In the ancient Toyot quarry, the 3–4 m-thick Assise de Chitry Formation exhibits...reach about 60% in these large cavities. The Toyot quarry produced about 10,000 tons of fluorite during the |  | | Book | | start at some partly or fully, a precipitate of chalcedony from aqueous solu- distance, with the more familiar...from the actual plate. WOLFRAMITE (PAGE 56), CALCITE ON FLUORITE (PAGE The size of the smaller objects...telling name Tse Bidahi, meaning 'Winged Rock'. the North Cainesville Mesa, east of Capitol Reef Park in Utah...slowly resumes its role in this abandoned basalt quarry near Kasbach, in the German Eiffel region. Basalt...DESERT 19 SHIPROCK - "0 ABANDONED BASALT QUARRY DOLERITE> 22 ROCK Here we see rocks in the |  | | Book | | crust. There are also rocks, such as limestone, calcite, marble and dolomite (which when pure are forms...For instance, calcite crystals occur in different, 11 Fig. 1. Different forms of calcite crystals. very...hexagonal (beryl, apatite) and rhombohedral (quartz, calcite, corundum, haematite, tourmaline, dolomite) (6)...centre, we speak of a geode (quartz, zeolites, calcite, etc.). Minerals forming druses or geodes are a...Minerals commonly found in druses are quartz, calcite, fluorite, barytes, etc. Excellent crystals of | | | Book | | crust. There are also rocks, such as limestone, calcite, marble and dolomite (which when pure are forms...For instance, calcite crystals occur in different, 11 Fig. I. Different forms of calcite crystals. very...hexagonal (beryl, apatite) and rhombohedral (quartz, calcite, corundum, haematite, tourmaline, dolomite) (6)...centre, we speak of a geode ( quartz, zeolites, calcite, etc.). Minerals forming druses or geodes are a...Minerals commonly found in druses are quartz, calcite, fluorite, barytes, etc. Excellent crystals of |  | | | | 4 Distributed in Australia by Rigby Limited 30 North Terrace, Kent Town Adelaide, South Australia 5067...crust. There are also rocks, such as limestone, calcite, marble and dolomite (which when pure are forms...For instance, calcite crystals occur in different, 1] Fig. 1. Different forms of calcite crystals. very...hexagonal (beryl, apatite) and rhombohedral (quartz, calcite, corundum, haematite, tourmaline, dolomite) (6)...centre, we speak of a geode (guartz, zeolites, calcite, etc.). Minerals forming druses or geodes are |  | Blaise, Thomas, Tarantola, Alexandre, Cathelineau, Michel, Boulvais, Philippe, Techer, Isabelle, Rigaudier, Thomas, Boiron, Marie-Christine, Pierron, Olivier, Landrein, Philippe (2015) Evolution of porewater composition through time in limestone aquifers: Salinity and D/H of fluid inclusion water in authigenic minerals (Jurassic of the eastern Paris Basin, France) Chemical Geology, 417. 210-227 doi:10.1016/j.chemgeo.2015.10.014 | Journal (article/letter/editorial) | | hosted in low-temperature (b 60°C) authigenic calcite, quartz and celestite crystals were analyzed by...crystallization processes. By contrast, fluid inclusions in calcite cements of Cenozoic age within the Oxfordian limestones...of fluid inclusion with δ18O of calcite crystals, we estimate that calcite precipitation occurred at temperatures...and 53°C. The hydrogen isotope composition of calcite-forming water is different between the Middle Jurassic...the porosity is filled by successive stages of calcite spars (Buschaert et al., 2004; Vincent et al., |  | | Catalog/List | | PRE-MAILED. In order to increase interest by our non-North American customers, this issue has been pre-mailed... Very nice! ••• $75.00 81B02 URANINITE, Kinkel Quarry, Bedford, N.Y. (a) Excellent micro (to 3 mm) octahedral...masses(3 x 4 cm),.$5.00 81B04 RUTILE, Lengenbach Quarry, Binn, Switzerland.m/m single, black, bipyramid...ACANTHITE, Ag s, Saint Andreasberg, Harz Mts., East Germany. (a) excellent 2 x 2 3 x 2 cm acanthite paramorphic...3 mm in pedunculate or coralline growth. Some calcite coating ••• $80.00 (b) solid "dendritic" acanthite |  | | Book | | by Gloucester Typesetting Co. Ltd. Printed in Germany Contents Translator's Foreword 4 Foreword ...known in some parts of the Continent, including Germany. Ore: Ores are deposits of minerals, which contain...pyramids rhombohedron apatite beryl, corundum calcite quartz tourmaline orthorhombic rhombic prisms... calcium carbonate (CaC03) may crystallize as calcite (calc spar) which is trigonal, or, under different...spherical cavities which are called geodes. Quartz, calcite and fluorite are typical of such crystals. Mostly |  | | Book | | 4 Distributed in Australia by Rigby Limited 30 North Terrace, Kent Town Adelaide, South Australia 5067...crust. There are also rocks, such as limestone, calcite, marble and dolomite (which when pure are forms...For instance, calcite crystals occur in different, 11 Fig. 1. Different forms of calcite crystals. very...hexagonal (beryl, apatite) and rhombohedral (quartz, calcite, corundum, haematite, tourmaline, dolomite) (6)...centre, we speak of a geode (quartz, zeolites, calcite, etc.). Minerals forming druses or geodes are a |
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