 | | Book | | zeolite mineralogy was done, at that time, in Germany, Italy, France, and Great Britain. Because of differences...Lower Miocene columnar basalt in the Narre Warren Quarry, near Melbourne, Australia. The minerals are believed...laumontite). Mordenite, epistilbite, quartz, and chalcedony are absent in the olivine basalt flows. At the...contain empty cavities followed at depth by quartz, chalcedony, mordenite, and clay, and at the lowest level...heulandite, scolecite, epistilbite, quartz, mordenite, chalcedony, and clay (Walker, 1960b). Analcime, phillipsite | | | Book | | zeolite mineralogy was done, at that time, in Germany, Italy, France, and Great Britain. Because of differences...Lower Miocene columnar basalt in the Narre Warren Quarry, near Melbourne, Australia. The minerals are believed...laumontite). Mordenite, epistilbite, quartz, and chalcedony are absent in the olivine basalt flows. At the...contain empty cavities followed at depth by quartz, chalcedony, mordenite, and clay, and at the lowest level...heulandite, scolecite, epistilbite, quartz, mordenite, chalcedony, and clay (Walker, 1960b). Analcime, phillipsite |  | | Journal (article/letter/editorial) | | 348 pyroxenite altered to serpentinite and of gabbro dykes. These complexes were emplaced as large overthrust...Unicam Mattson 1000 FTIR spectrometer (Burladingen, Germany). Samples were first diluted with KBr at a ratio...iron oxide, the dithionite-citrate (Merck, Darmstadt, Germany) procedure was used (Mehra and Jackson 1960)... Silica appeared as thin veinlets of quartz, chalcedony, or opal traversing both serpentinite and magnesite...ultramafic and mafic source rocks (e.g. serpentinite and gabbro) (Table 1). Trace elements are concentrated in |  | | Book (edition) | | Mineralogie, Geologic und Palaeontologie, Stuttgart, Germany. Quar. Jour. Geol. Soc., or Q. J. G. Geological...geologischen Geseli- Germany. Zestschrift ftir Krystallographie, Munich, Germany. TABLE OF CONTENTS... opal, include quartz and related minerals chalcedony magnetite and hematite and the With these should...or grano-diorites. Transitional passages to gabbro, from increase of augite and plagioclase, are also...of texture, good, rectangular cleavages in the quarry, adaptability to tool treatment, durability and |  | | Book (edition) | | quartz crystals from a geode in granite; Gigoulande quarry, St. Peter. THE MINERALS OF JERSEY INTRODUCTION...coarse, gabbro dyke invading granite in a quarry on Cötil Point (7). Some material from Ronez quarry also...microscopically in several other lamprophyres. Agate (see Chalcedony). Allanite (Orthite) (Ca,Fe"h(R,Al,Fe"hSi 30...granite pegmatites invading diorite, notably at Ronez quarry and all along the dioritic foreshore of Samares...the south-east granite quarry at L'Etacq (15). At another place In the same quarry it occurs in a porous |  | | Journal (article/letter/editorial) | | agates is dominated by alpha-quartz (fibrous chalcedony, microcrystalline and macrocrystalline quartz)...activity was probably triggered by intrusion of gabbro-dolerite sill and resulted in the second phase...are generally defined as banded or patterned chalcedony that are mainly composed of minute crystals of...[13], and are intruded by the Salmi anorthosite–gabbro– gapakivi-granite complex (1.55–1.53 Ga) [14,15]...byintruded gabbro-dolerites of the Valaam ± 8 Ma The PrF, SalF,rocks and PashF rocks are by gabbro-dolerites |  | Svetova, Evgeniya N., Chazhengina, Svetlana Y., Stepanova, Alexandra V., Svetov, Sergei A. (2021) Black Agates from Paleoproterozoic Pillow Lavas (Onega Basin, Karelian Craton, NW Russia): Mineralogy and Proposed Origin. Minerals, 11 (9) 918 doi:10.3390/min11090918 | Journal (article/letter/editorial) | | agates is only composed of length-fast and zebraic chalcedony, micro- and macro-crystalline quartz, and quartzine...creativecommons.org/licenses/by/ 4.0/). Agate and chalcedony are varieties of silica that are mostly composed...composed of minute crystals of α-quartz. Chalcedony is band-free and characterised by uniform colouration...whereas agate is defined as banded or patterned chalcedony [1]. Agates usually contain significant amounts...intrusive units of ZF and SF comprise dykes and gabbro-dolerite sills. For examKarelian Craton is formed |  | | Book | | begins with non-equilibrium spherulitic growth of chalcedony. The banding and colors in agate are “governed...magmatic and/or meteoric waters are associated with gabbro-dolerite sills. Svetova et al. [6] provide the...carbonaceous matter associated with (fibrous) chalcedony or fine-grained quartz is the major coloring agent...Bergakademie Freiberg, Brennhausgasse 14, 09599 Freiberg, Germany Helmholtz-Zentrum Dresden-Rossendorf, Hemholtz...Technology, Chemnitzer Str. 40, 09599 Freiberg, Germany; r.moeckel@hzdr.de Department of Geological Sciences |  | | Book (edition) | | Mineralogie, Geologic und PalKontologie, Stuttgart, Germany. Quar. Jour. Soc, or Q. Geol. J. G. S. —...geologischen Gesell- Germany. Zeitschrift fiir Krystallographie, Munich, Germany. A HOOK IIAXI)...g. XXXV., , Pele's Hair, Hawaii, Gethurms, Germany, Lemberg, See No. 13. G., 15. Tachylyte, Coinmoits...obsidian, Teneriffe, Abich. Vulk. Ersch. Ostheim, Germany, Lemberg Z. Cohen, N. 10. Pitchstone, Silver...in many parts of A HANDBOOK OF ROCKS. so Germany. The varieties with leucite are especially familiar |  | | Report (issue) | | crystals), Felton's farm (Chester), and Ward's quarry; Montgomery County: Sumneytown, and Perkiomenville...Philadelphia: Fairmount Park, Frankford, and Rit- enhouse quarry. SCOLECITE CaAl 2 Si3 Oi .3H 2 O MONOCLINIC ...white radiating tufts; Delaware County: Ward's quarry, mealy white radiations. DESCRIPTIVE MINERALOGY...mines, the corundum mines at Unionville, Brinton's quarry south of West Chester, and the French Creek iron...illustration selected is the symbol of Brinton's quarry, three miles south of West Chester. REFERENCES |  | | Book | | xtals are i to % inches long. In a dike cutting gabbro. The dike is 4 to 6 inches thick and is of a reddish...approximately 18 to 24 inches thick that cuts the gabbro which at this point is about 4% mile wide and...anorthosite. Sec. 5, T.3N., R.13W. Near the Hazel quarry in pegmatite dikes. Long rods of altered amphibole...pyrite in a gabbro at Hazel quarry. 2 Secs. 15, 16, 21; T.4N., R.1SW. In a quartz gabbro % mile wide...4, T.4N., R.13W. In a dike 40’ wide cutting the gabbro with COUNTY: amounts. augite, hornblend, biotite |  | | Book | | names like granogabbro (granite-gabbro), monzogabbro (monzonite-gabbro), rhyodacite (rhyolite-dacite)...tribal peoples: bojite (Boii, Celtic tribe in Germany), gondite (Gonds, central India), onkilonite (Onkilones...sthene) are the essential constituents; differs from gabbro by the presence of the Definition proposed prthopyroxene...lUGS, plutonic rock satisfying the definition of gabbro, in which pl/(pl + px + ol) is 10-90 and the opx/(opx...salts overlying rock salt deposits at Stassfurt, Germany. [G. Abraum, refuse; the salts were originally |  | | Catalog/List | | }~-x2ixli". £l6.5o. NATIVE B~5MUTH. Schneeberg, Saxony, Germany. Very rich vein section consisting of feathery...Pearce in 1903. 2-!;-xl~-". £8.00. CALCITE. Machen Quarry, Rudry, Glamorgan. Sharp, composite, translucent...nearly 1" in length. 2-txl~xl". £9.00. 21. CHALCEDONY. North Roskear Mine, Illogan, Cornwall. Lustrous...C - l-rxlt". 8Op. HEMATITE. Altenberg, Saxony, Germany. Unusual very sharp, bright black, twinned crystals...to -t" in size, thickly covering a 2xli" area on gabbro matrix with a little Calcite in association. 2~-x2-t" |  | | Report (volume) | | Serpentinite and Rodingite in the Hunting Hill Quarry, Montgomery County, Maryland By DAVID M. LARRABEE...BULLETIN 1283 Description of rocks exposed in the quarry near the center of the Hunting Hill ultramafite... Geologic map of the Hunting Hill serpentinite quarry __ In pocket 1. Index map showing location of the...Md______________ 3 2. Photograph of the Hunting Hill quarry, 1966___________ .5 3. Photograph of serpentinite...Hunting Hill quarry--------------4. List of minerals identified from the Hunting Hill quarry __ 5. Structuraltrends |  | | 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 | | Martin Meschede Laurence N. Warr The Geology of Germany A Process-Oriented Approach Regional Geology...Reviews Series editors Roland Oberhänsli, Potsdam, Germany Maarten J. de Wit, Nelson Mandela University, Port... Martin Meschede • Laurence N. Warr The Geology of Germany A Process-Oriented Approach 123 Martin Meschede...and Geology University of Greifswald Greifswald, Germany Laurence N. Warr Institute of Geography and Geology...Geology University of Greifswald Greifswald, Germany ISSN 2364-6438 ISSN 2364-6446 (electronic) Regional |  | | Catalog/List | | 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...AsO/4 OH BEAVERITE Pb (Cu Fe Al) SOM BEEKITE Chalcedony BEIDELLITE clay mineral____ BEMENT1TE MnSiO__________...S.A. Rotlaufchcn Mine Waldgirmes, 1 x 'A £2.50 Germany Ixl £2 Carnelian Bay.Scarborough Yorkshire 1x2 |  | | Book (edition) | | jnsperlikc chalcedony; 1-Ir.W. B. Penniston, of Ashland, Oreg., for specimens of chalcedony and ngatc...a~ate consist of translucent gray to blue-gray chalcedony. Some of 1t shows a banded structure, nncl some...nclsmall mnsses. It consISts of translucent gray chalcedony through which bright blood-red spots and patches...peculiar patterns of brilliant red in trnnslucont chalcedony are higlily attractive. Specimens of copper-stained...the l\fesquite Mountains, nnd of amethystine chalcedony about 8 miles soul,h of this locality have been |  | | Book | | fluorite - amethysts and other quartz crystals - chalcedony, agate and onyx -jasper 9 VALUABLE METALS AND... unlike structure, a are obviously granular gabbro), while others are composed of diorite, grains...form and environment, and unknown find a yet quarry is species there is always a chance that he...and rocks intermediate Drachenfels area of West Germany. oceanic islands, Hawaii between trachyte and...occurs in Minnesota and Wisconsin— the Duluth Gabbro— and one of the most thor- oughly worked out masses |  | | Journal (article/letter/editorial) | | traditional geological context. Figure 1. Kaena quarry, viewed from the Kealia Trail, Mokuleia, Oahu....Calcite stalactite “veil,” about 18 cm, from the Laie quarry, Oahu. Eric Heinen De Carlo specimen, Bryan Swoboda...amounts) of magnetite are commonly found in dunite. Gabbro Coarse-grained analogue of basalt consisting mostly...metamorphic formation of garnet peridotite from olivine gabbro primarily involves a change in the water content...in solution and subsequently deposit as opal, chalcedony, or crystalline quartz, all of which have been |  | | Journal (article/letter/editorial) | | sulfates. Among the silica minerals in agates only chalcedony, quartz and quartzine were found. The parameters...conglomerates; Paleoproterozoic: 2—ca. 1770−1750 Ma gabbro-dolerites; 3—ca. 1800−1650 Ma red argillites, conglomerates;...conglomerates; Paleoproterozoic: 2—ca. 1770−1750 Ma gabbro-dolerites; 3—ca. 1800−1650 quartzitic sandstones... 2985 Ma tonalities, peridotites, pyroxenites, gabbro, diorites; 15—ca. 2940−2900 Ma komatiites, basalts...granodiorites; 2985 Ma peridotites, pyroxenites, gabbro, diorites; (1—Pinguba, 15—ca. 2940−2900 Ma 3240−3220 |  | | Book | | outlined in the following way: 1000° c light gabbro decreasing heat diorite alkaline feldspar neutral...corresponds to one volcanic rock on or near the surface: gabbro to basalt, diorite to andesite, granodiorite to...rocks. Togeth.•Uli rocks which are more basic than gabbro, the socalled ultrabasic rocks, they make up the...agate, which fills the cavities in bands, and chalcedony, with its characteristic glossy lustre. Under...rather in its surroundings, in smaller patches-gabbro and its finer grained variant, diabase, can be |  | | Journal (issue) | | needles in chalcedony, Trent, Lane County, Oregon Fig. 5 Yellow orpiment needles in chalcedony, Trent,...Yellow orpiment coating red realgar needles in chalcedony Trent, Oregon Fig. 8 Gray and black arsenic...naturally dissolved away, covered with colorless chalcedony. Trent, Lane County, Oregon. Fig. 7 Hollow needles...or gray arsenic covered with colorless to red chalcedony Trent, Oregon 4 Fig. 9 Hollow realgar shell...gray to black arsenic and covered with colorless chalcedony. Trent, Lane County, Oregon Fig. 10 Red realgar |  | | Book | | publisher. Typesetting: Otto Gutfreund & Sohn, Darmstadt. Printing: Karl Gerike, Berlin. Binding: Lüderitz...Lüderitz & Bauer, Berlin. Printed in Germany. Dedicated to my former teacher and friend Professor Dr. F...Grigoriev (U.S.S.R) Prof. Dr. F.K. Drescher-Kaden (Germany) Mr. D. Minatidis (Canada) Dr. E. Mposkos (Athens)... Dr. Thesis, University of Frankfurt am Main, Germany. Fig. 551, by Wager and Deer from Theoretical Petrology...the gabbroic protolytic layer is problematic. The gabbro-protolyte despite the geophysical evidences of |  | | Book | | gypsum, halite, calcite. Found in : Lower Saxony/Germany; Czechoslovakia; Yugoslavia; Surrey/England; Colorado/USA;...by: ordinary coal. Found in: Thuringia, Saxony/Germany; Czechoslovakia; Seine/France, Tula/ USSR. Similar...: Lower Saxony, Baden, eastern Harz mountains/Germany; Galicia/Poland; Urals/USSR; Alsace-Lorraine/France;...Hattor[, Philippsthal, Hesse/Germany KMgCl3 · 6 H2O Q) Robling, Halle/Germany 1: ½ 3◄ Streak white...Found in: Lower Saxony, Hesse, near the towns of Magdeburg, Halle, Erfurt/Germany; Galicia and Catalonia/Spain: |
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