 | | Journal (article/letter/editorial) |
| is albite-chloriteepidote-calcite, sericite and quartz. Farther away from the diabases/spi]ites tile desmosites...m p o n e n t s are sericite, chlorite, albite, quartz, aetinolite etc. Desmosite and Spilosit 327...x e d w i t h chlorite in g r o u n d m a s s . Quartz was f o u n d in some samples. I t occurs as small...part of the picture); sandy-calcitio material with quartz and albite as elastic fraction (gray section in...carbonate sediments, the sedimentary materials (elastic quartz, feldspars and others, and chemogcne silica and |
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| Serpentinkontakt-Mineralisationen von Schlaining im Burgenland (Österreich) 137. Der basische Intrusivvulkanismus... Serpentinmassiv mit Magnesit- u n d Limonit-Hornstein-Zone im Altflächenbereich (Veluce, Morawatal in...weniger tief unter Kreide liegenden Sandstein-Hornstein-Diabas-Gesteine aufs höchste ausgebildet, erlebt...Verbreitung und die Besonderheiten der Sandstein-Diabas-Hornstein-Schichten vermehrte Unsicher- ©Geol. Bundesanstalt...Übergänge p,uf, die einerseits zur Sandstein-Diabas-Hornstein-Serie, anderseits zu Kristallinverbänden führen |
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| sind in München eher Mangelware. Doch „Himalaya Quartz Ptv. Ltd." aus Nepal hatte diesmal einen herrlichen...Bergkristall-Stufe aus dem gleichen Fund. Himalaya Quartz pty. Ltd. Fotos Bode. schienen uns auch bis etwa...an. Das Material stammt aus Haldenfunden in der Umgebung der 1917 entdeckten Goldlagerstätte Ondundu, Region...Nordamerika USA.Aus der Buick Mine, Viburnum Trend District, Reynolds Co., Missouri, bot „Magma Minerals"...calcit-Stufen aus der Buick-Mine, Viburnum Trend District, Missouri.1. Breite der Stufe 17,S cm. 2. Breite |
 | | Journal (article/letter/editorial) |
| the pebbles we found red jasper, brownish quartz, milky quartz, whitish chalcedony, black basanite, gray...slender black xls of rutile in a massive smoky quartz which is stained green by green malachite. COLORADO...tractor has scraped and turned over many schists and quartz rocks which contain kyanite xls and ilmenite. P...fossilized coral. GEORGIA — "I am enclosing some quartz crystals with inclusions. Please identify these...Some amethyst has been found in the area but these quartz crystals are the only other minerals that were |
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| R[PUBllQU[ D[MOCAATIQU[ DU CONGO 1350 ~om FC 1011 QUARTZ AMETHYSTE R[PUBUQU[ D[MOCAATIQUf DU CONGO 1350...USA: Calcite aus der Sweetwater-Mine, Viburnum District Steffen Jahn Majestätisch sitzen die bis zu 15...konnte bereits früher die theast Missouri Lead District and Description of Mine Anzeichen einer weiteren...die in Auswürflingen aus den Bimsgruben in der Umgebung des Laacher-See-Vulkans gefunden wurden.Auch hierbei...Privatbesitz. zusammen mit seinem Kollegen die Umgebung absuchen und an drei verschiedenen Fundstellen |
 | | Journal (article/letter/editorial) |
| and x-ray investigation of 51 mierocrystalline quartz samples show that they are built up of fibrous...(agates) or finest crystalline, isometric grained quartz (flints, cherts, jasper or chrysoprase). These...e m p e r a t u r e cristobalite in addition to quartz (in two samples even as main component) ; the high-low...minor component. 2) In contrary to macrocrystalline quartz crystals microcrystalline quartzes generally show...minimum allows a division of the microcrystalline quartz crystals analogous the macrocrystalline classification |
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| Rechts eine landschaftliche Impression aus der Umgebung des Bergbaus. Guangxizhuang Wu~ong mme~ Wuzhou•...komplex verfaltete kambrische Sedimente auf. In der Umgebung der Grube sind dies dunkelgraue bis schwarze Tonsteine...typischer feinkörniger, glasiger, hellgrauer Chert (Hornstein) mit einer Mächtigkeit von bis zu so cm. Es wird...Post-Rhodochrosite Syn- Late Quartz Post-Sphalertte• Youngest Oldest -- - Post-Late Quartz Syn-Fluorite Post-Fluorite...Syn-Eacy Quartz Post-Eacy Quartz Syn-Sphalente Syn-Rhodochrosite Post-Rhodochrosite Syn-Late Quartz Post-Sphalertte· |
 | | Report (issue) |
| perofskite. pr .............. pyrite. Q .............. quartz. ru .............. rutile. so .............. sodalite...M.. P.M., 1878, p. 256. R. T. 1879, p. XXXII. Quartz-diorite. Near tonalose. Liparite. Near phlegrose...Streng, N. J., 1877, p. 230. R. T. 1879, p. XXXVI. Quartz~diorite. .. ORDER 4. QUARDOFELIC. SUBRANG 2... B. B., II, p. 624, 1883. R. T. 1884, P· XXX. Quartz-diorifeporphyry. Near dacase, cf. No. 12, adamellose...1884, p. XVI. Graniteporphyry. Near toscanose. Quartz-diorite. Near adamellose. I. Q trace trace trace |
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| 378 OHMERT, W.: Fossilfunde aus der Freiburger Umgebung 379 KORITNlG-LASSEK, Ch.: Verzeichnis der im...freien Zustande befanden und selbst gegen die Umgebung sich durch ihren Aggregatzustand und ihr Gewicht...FROMHERZ, C. {1838): Geognostische Skizze der Umgebung von Freiburg. Der Kaiserstuhl. - In H. SCHREIBER:...& GRAEFF, Fr. (1890): Geologischer Führer der Umgebung von Freiburg i. Br. 141 S. WALTHER, J. & ALTHAUS...zinnsteinführenden Schlieren des Triberger Granits in der Umgebung von Homberg und die Quarz-Turmalin-Wolframit-Gänge |
 | | Journal (article/letter/editorial) |
| subalkaline group consisting of granites, granodiorites, quartz-diorites, gabbro-diorites, and gabbros, and a younger... vogesites, kersantites, minettes, fourchites, quartz-keratophyres, etc. The petrographic descriptions...found. Thus the curved sheets of the Queenstown district attain a thickness of fully 1,500 feet and cover...are more acid phases, and the rock passes through quartz-dolerites and diorites to granophyres and granites...through dikes of blende with a little pyrite and much quartz. Included fragments of the dike rock were assimilated |
 | | Journal (article/letter/editorial) |
| Victoria on July 11, 2015 German term: 'Diabas-Hornstein Formation') consisting predominantly of sandstone...veinlets consisting of prehnite+calcite+ Fe epidote±quartz±albite±chlorite±clinozoisite±pectolite. The vein...Bull. 183. BARI6, L. J., 1969. Korund aus der Umgebung des Dorfes Vijaka in Zentralbosnien. Min. Petr...B., 1954. Einige Beobachtungen aus den Diabas-Hornstein-Formation (Neka zapaianja na dijabaz-roznaikoj...of the Jurassic magmatic-sedimentary (Diabas-Hornstein) formation of the Dinaridic ophiolite zone (Yugoslavia) |
 | | Journal (article/letter/editorial) |
| connection of the ore beds with basaltic tiU to quartz-keratophyric-weilburgitic lava and tuff associations...des Typus Tschiamri/Nikopol als anch Schiefer- Hornstein- Spilit- Formation sowie der Manganerzlagerstfitten...werden k6nnen. Viel wahrscheinganerz - Schiefer- Hornstein- Spilit- Formation" licber ist die Verkntipfung |
 | | Journal (article/letter/editorial) |
| low-temperature cristobalite/tridymite) to stable quartz. OpaI-CT is always the precursor silica phase (precipitated...deposition), followed by the formation of genuine quartz cherts (about 50--140 m.y. after deposition of...oozes). Already during early diagenesis, accessory quartz is directly precipitated in poreellanites and fills...burial depth, which later leads to an opal-CT--> quartz transformation, possibly without any major silica...overlap for the distribution of opal-A, opal-CT, and quartz, a general positive correlation of the maturity |
 | Ulrych, J., Adamovic˘, J., Žák, K., Frána, J., Řanda, Z., Langrová, A., Skála, R., Chvátal, M. (2007) Cenozoic “radiobarite” occurrences in the Ohře (Eger) Rift, Bohemian Massif: Mineralogical and geochemical revision. Geochemistry, 67 (4) 301-312 doi:10.1016/j.chemer.2005.05.003 | Journal (article/letter/editorial) |
| chalcedony-rich fills of joints and breccia zones (chert, Hornstein of Haidinger, 1854) in granite in the Karlovy...and cavities consist of older phases (aragonite, quartz and chalcedony, 7goethite), and younger barite...barites correspond probably to dispersed admixture of quartz. SrO contents in the range of 0.1–0.9 wt% (average...barite and exceptionally very small amounts of quartz in the collected powder patterns. The unit-cell...difference curve except those due to the presence of quartz (these regions were excluded in final stages of |
 | | Journal (issue) |
| calcite enclosing from fifty to sixty per cent of quartz sand and were early described by Lassone and Haiiy...per cent of calcite enclosing sixty per cent'of quartz sand. In the relative proportion-0f sand and calcite...the calcite, filling the interstices be tween the quartz grains, and in detecting its cleavage. Pyramids...with the finer sand, large, rounded grains, true quartz pebbles, measuring as much as a centimetes in diameter...700-foot level of the Grizzly Bear mine of Ouray district. Rhodochrosite is a carbonate of magnesia, which |
 | | Book (chapter) |
| GRANITE. Essentially composed of lamellar felspar, quartz, and mica, nearly equally disseminated. Principal...Principal varieties. COMMON GRANITE Felspar, quartz, and mica, equally disseminated. PORPHYHITIC GRANITE....Table (Jurine.) Essentially composed of felspar, quartz, and steatite, talc, or chlorite, entirely or almost...&c. Essentially composed of lamellar felspar and quartz. Obs. All the fine kaolins are derived from this...Essentially composed of lamellar felspar, hornblende, and quartz. The felspar is often predominant. Principal varieties |
 | | Journal (article/letter/editorial) |
| 172 On the origin of the name 'quartz'. By S. I. TOMKEIEFF, M.Sc., F.G.S. King's College, University...but how or when this substance acquired the name quartz seems tg be a still unsolved mystery. Theophrastus... as implied by Pliny, believed crystal (modern quartz) to be a variety of supercooled ice'. In point...crystalline variety of silica which is now called quartz. This meaning of the word crystal survived until...the name quartz. How and why did this change occur, and what is the origin of the name quartz ? Apparently |
 | | Book (volume) |
| Pyrope, 136 9- Cinnamon-stone, 139 . VI, Quartz 3. Quartz. Precious Garnet, 122 129 Family. 8. Siliceous... 2. Rock-crystal, 3. Rose or Milk Quartz, l60 4. Common Quartz, 16’3 5. Prase, - 173 - - 6...polished, it shews po¬ sitive electricity; whereas quartz, and the other precious stones, if rough, afford...quaitz. This ochry earth is frequently mixed with quartz, sand, and rolled masses of different kinds, and...America.—Diamonds were first found in America in the district of Serro Dofrio in Brazil, towards the begin¬ |
 | | Journal (article/letter/editorial) |
| geological evidence and the occurrence of corroded quartz relicts within some of the xenoliths provides clear...the Miocene alkalibasalt of Bfihl near Kassel Hornstein (1907) found the first native iron bearing xenolith...xenoliths in the Bfihl basalt contain corroded quartz relicts and he also mentioned the unusually high...xenoliths. Moreover, the occurrence of partly resorbed quartz grains within the xenoliths (Irmer 1921) and the... Abt. Walter de Gruyter + Co, Berlin-Leipzig Hornstein FF (1907) Mitteilung fiber das Vorkommen yon makroskopischen |
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| cavités sont tapissées de parmi lespetits cristaux de quartz quels se trouvent les topazes celles sont adhérentes...quelquefois associées et groupées tavec des cristaux de quartz, de feld-spath, de scliorl mica. Dolomieu a vu...noir. Cet amas de matières , composé de grains de quartz , de mica et de scliorl , se trouve encaissé en...trouvent sauvent groupées avec des cristaux de quartz noirâtre sieurs , et avec des topazes. J'at plu-...deviennent si dures , ctoient singulière- * V 1 \ quartz Pai pîuî ierres se sauroit t'ait été cou- |
 | | Journal (article/letter/editorial) |
| went to Sarah's Creek State Park to prospect for Quartz and massive blue corundum. The Georgia Mineral...work. Petrified wood containing doubly terminated quartz crystals was collected at Brilliant, Ala. by the...Fossils in New York City" was the subject of Sydney Hornstein, Paleontologist of the American Museum of Natural...overnight field trip to Heuvelton to hunt for smokey quartz, black tourmaline (schorl ?) calcite, sphene, tremolite |
 | | Journal (article/letter/editorial) |
| a b s t r a c t A world-class fluorite mining district was located NNE of Regensburg at Nabburg-Wölsendorf...“Pfahl”, also called the “Great Bavarian Quartz Lode” (=quartz dyke along a deep-seated shear zone), is...and Se mineralization in the Nabburg-Wölsendorf District. Another prominent fault structure, the NNW-trending...minor Cu-, Zn- and Pb sulfides in the Donaustauf District. Concluding from the REE distribution, primary...paleogeography of each mineral district, was more intensive in the northern district, because of a moderate erosion |
 | | Journal (article/letter/editorial) |
| the other hand there are in the vicinity of the quartz-porphyries hard beds rich in silica and often with...a ' kieselsehiefer '. No mention is made of ' hornstein ' or 'radiolarienjaspis' except in reference to...greenish varieties of the Long Keloh in the Berau district. " The second type is an argillaceous chert or...are rendered clayey by the removal of the finer quartz particles and the breaking down of the felspars |
 | | Book (chapter) |
| kaolinite + quartz + illite ?, Robertson 19 (1954). Haaramethyst = violet Fe-rich quartz + acicular rutile...Haarnickelkies = millerite, Kipfer 94 (1974). Haarquarz = quartz + rutile, Kipfer 94 (1974). haarsalt = acicular...silver, Doelter III.2, 125 (1919). Haarstein = quartz ± rutile ± goethite, Sinkankas 288 (1972). Haarzeolith...Roberts, pers. comm. (2010). hacked quartz = transparent quartz, Clark 579 (1993). Hackmanit = pink S-rich...haemachatae = banded quartz-mogánite mixed-layer, MM 13, 368 (1903). hæmachates = banded quartz-mogánite mixed-layer |
 | | Journal (article/letter/editorial) |
| Fig. 9. La formation des Radiolarites (Schiefer Hornstein) dans le sillon du Pinde (eug6osynelinal) (d'apr6s...t e i n " , " Diabases-Radiolarites = Diabas-Hornstein,> p a r les auteurs); h o r i z o n t a 1 e m...~Radiolarites>~ s e n s u stricto ou ~Schiefer Hornstein>@ L a c616bre association Radiolarites-Roches...Radiolarites s e n s u s t r i c t o ou Schiefer Hornstein. Si, en certains secteurs, il semble que les Radiolarites...porphyrite, et correspondent a l'assoeiation Porphyrit-Hornstein; elles sent s6par6es des Radiolarites du Jurassique |
