 | | Journal (article/letter/editorial) | | variable amount of cubic packing in wurtzite. No example of wurtzite with only hexagonal packing (2Il structure)...been described by Ramdohr & Websky (1943), and as wurtzite, if the morphology is rhombohedral or hexagonal...intergrowth of two or more types of wurtzite or even of wurtzite and sphalerite (by analogy with the...acidity, the greater the probability of formation of wurtzite rather than sphalerite (Allen, Crenshaw, & Merwin...average value of three exact determinations of wurtzite by r-ray difiraction methods (Ulrich & Zacharaisen |  | | Journal (article/letter/editorial) | | studyof fluid inclusionsin "colloform" sphalerite-wurtzite assemblages from many localities, I found no evidenceof...enlargementof the preexistingsphalIII (from Moresnet, Belgium), which are assumed erite fibers past the..."varved" samples. The numberof "varves" crystals of wurtzite(?) grew out radially from the per "cycle" for...strings "varve" color. European Deposits Moresnet,Belgium.--This district,which liesabout 10 km southwestof...73659and ER 67-64 from the Eschbroichmine, near Moresnet(lat. 50ø4YN; long.5ø59'E), andUSNM R 549,fromWelkenraedt |  | | Journal (issue) | | Ceulanymaesmawr, Ceredigion, Wales 39-40 Acicular wurtzite and sphalerite from the Lockridge mine, Bere Alston...belangrijk voor ceramiek. Willemietkristallen van Moresnet, Liège, België. Kristalletjes tot ongeveer 1 mm lang...Dillen. Kristaltekening van willemietkristal van Moresnet naar Buttgenbach, 1947. Geonieuws 32(1), januari...monokliene stelsel; het Destineziet van Richelle, Liège, België. Aggregaat van ongeveer 8 cm. Verzameling...orosilicate mineral from the Stavelot Massif, Belgium", Eur. J. Mineral. 17, 703-714. Bernard, Jan H |  | | Journal (article/letter/editorial) | | .. :' " ß...... Mascot, Tenn ........... Moresnet, Belgium ...... Scharley, Silesia......... " 3 :2...as przibramite,a notablycadmiferoussphaleriteor wurtzite, and as otavite, a basic cadmiumcarbonateresulting...sphalerites,and in someoxidation products thereof;alsoin wurtzite. Extremelyminutequantitieshavebeen detectedspectrographically...synthetically)and of the corresponding unit cellsof wurtzite and of greenockite, as shownbelow,whenconsidered...ysico-chemical conditions than those in which wurtzite occurs. On the other hand, it is reportedthat |  | | Journal (issue) | | Southern California 26-35 Fluorescent sphalerite and wurtzite from the Carrara area of Tuscany, Italy AMER...Kelmisberg), Moresnet, Kelmis, Plombières-Vieille Montagne District (Plombières-Altenberg), Verviers, Liège Province |  | | Catalog/List | | 00 (L) 81B25 WURTZITE, Llallagua, Bolivia. (a) very large and sharp individual wurtzite crystals (to...81B82 WILLEMITE, Vieille Montagne, Moresnet, near Aix-La-Chapelle, Belgium. (a) very nice crystallized gemmy |  | | Journal (article/letter/editorial) | | willemite-dominated mineralization at La Calamine, Belgium, may be related to paleoweathering or be of possible...historically important “La Calamine” deposit in Belgium, which is hosted by upper Paleozoic carbonates...coating botryoidal smithsonite from La Calamine, Belgium (Museo di Mineralogia, Univ. Napoli). f. and g...massive Zn carbonates/silicates from La Calamine, Belgium (Museo di Mineralogia, Univ. Napoli). h. Smithsonite...Reports of Società Italiana Miniere La Calamine Belgium Ca. 760,000 t Zn total extracted until 1884 Karst-cavity |  | | Journal (article/letter/editorial) | | 通 に知 ら る5閃 亜 鉛礦 に 一 致 し,六 方 晶 系 の もの は繊 維 亜 鉛礦Wurtziteに 相 當 す 。 1) E. 341〜396, T. Allen, 1912. J...は 腎状 の 表 面 を 有 す る塊 を な して 出 で,例 へ ば獨 白両 國 境 のMoresnet地 方 に て は 火 成 岩 の 噴 出 を 全 く見 ざ る に 拘 らず,古 生 代 |  | | Journal (article/letter/editorial) | | EDWIN ROEDDER Missouri,Austinville (Virginia), Moresnet (Bel- inclusions,which might shedsomelight on...irregular birefringence, indicating deviation toward wurtzite, even those with "high" birefringence are believed |  | | Journal (article/letter/editorial) | | patterns were examined and the absenceof sphalerite. wurtzite. smithsonite. and hemimorphite established. Tuenlr...(1395) from the lead mines at Altenberg, near Moresnet, and Aachen in Germany. Kenngott (1868, p. 153) |  | | Catalog/List | | matrix. 3x2x1^", £14.00. 134. DAVHEUXITE. Ottre,Belgium. Lustrous,rather silky looking,bladed pearly crystalline...J'JxJ^xB-J”, £15-00. 30 U. SCHENBLENDE. Moresnet,Belgium. Curious but attractive,cut and polished crystalline...between .yellow Mimetites. 2-Jx1-£x1", £5.00. 373. WURTZITE(Var:Sphalerite). Pribram,Bohemia. Dark,,reddish-brown |  | | Journal (article/letter/editorial) | | countries are: the U. S. A., Canada, Germany, Belgium and France. The world production of metallic thallium...zinc skimmings containing 4% thallium. , In Belgium thallium is obtained frOm pyrite in the cities...(the deposits of Upper Silesia, Westphalia and Belgium, from which most of Europe's thallium is obtained)...sample of pufahlite (a mixture of teallite and wurtzite) from Potosi, Bolivia, showed a content of 0....thallium-bearing minerals are sulfides of zinc: sphalerite, wurtzite and voltzite. Out of approximately 2000 monomineralic |  | | Journal (issue) | | e Joseph J. Lhoest P.O. Box 141 B-4000 Liege, Belgium Kipushi is famous as a rich pipe-like deposit...the mid 1970’s, mainly at the School of Leuven, Belgium (Ottenburghs, 1964; Viaene and Moreau, 1968; Devos...twinning on (001) reported by Levy in 1843 from Moresnet, Belgium (Goldschmidt, 1913, and others), was not observed...observed by Buttgenbach (1947) from Kipushi or Moresnet. Hemimorphite crystals occur as the most widespread...specimens (courtesy of Zelimir Gabelica of Namur, Belgium). Veszelyite (Cu2+,Zn)3(P 0 4)(0 H )3-2H20 Kipushi |  | | Report (issue) | | section across stalactite of mixed sphalerite and wurtzite from Zig Zag mine. (Plain light)................section across stalactite of mixed sphalerite and wurtzite from Zig Zag mine. (Crossed nicols).............recovered. Marcasite and pyrite are common associates. Wurtzite is not found in the Picher field but is present...highest copper, germanium, and indium content. The wurtzite near Joplin occurs as a minor anisotropic constituent...are a new polymorph, wurtzite 10H, and a new occurrence of the polymorph, wurtzite 6H. Galena, like sphalerite |  | | Journal (issue) | | Windisch 30 Van Wouw Street Groenkloof, Pretoria Belgium: Paul Van Hee Deuzeldlaan 16-bus 1 B-2120 Schoten...associated mainly with sphalerite. Sphalerite and Wurtzite, ZnS Sphalerite is found in anhedral grains associated...brown color. It is in timately intergrown with wurtzite. The iron content of the mediumgrained sphalerite...lead-zinc mine of Altenberg near Moresnet (north of Liege) in Belgium and was recognized as a new mineral...DIGENITE TE T R A H E DRI TE s p h a l e r it e WURTZITE GALENA CUPRITE COPPER — -------— — M ENNELL |  | | Book | | impregnations. The type minerals are galena, sphalerite, wurtzite, pyrite, and marcasite, also lead sulpharsenides...Silver Pyrrhotite . Pentlandite Greenockite Wurtzite . . . Sphalerite . . Alabandite . Patronite...able to show in one case (1931b), was altered to wurtzite (fig. 18) instead. I n the process, the sphalerite...above the inversion point sphalerite —> 1020° ~> wurtzite. The white inclusions are chalcopyrite FIG. 19...Thrace RAMDOHR Cementing chalcocite replaces wurtzite along (0001) and (1120) cleavage. "Lattice shaped" |  | | Book (edition) | | instance, found in the ZnS system (sphalerite/wurtzite), is often difficult to discern: Changes in the...distinguishable from its precursor. Left: The original wurtzite is completely replaced by sphalerite. Only under...“camouflaged” under PPL; the XRD spectrum shows no wurtzite). Compositional Series A compositional series...the microscope stage is rotated. Left: Radial wurtzite (laminar, light to darker brown internal reflections)...Davidite(Ce, La, Y) Tapiolite-(Mn) Sphalerite Wurtzite Groutite Wolframite Thorianite Purpurite Reflection |  | | Book (volume) | | SITCCESSEUn DE DAUDDY ET U), RUE DES MAISON A LIÈGE, C'® SAIIN'I’S-PÈRES, liUE U) UE LA RÉGENCE...11.769 Salmiac Chaudeau (source de la), près Plombières, Haute-Saône. IV. 93 liarytine Quartz Chàtillon...1.681 Plagioclase 11.60, 61 11.580 Pyrite Plombières-les-Bains, Vosges. Puy-de-Dôme. Plantât puy...111.102 11.349 Saponite I. 478 Savon de Plombières 1.478 Sinegniatite 1.478 III.611 Sidérile...Condé-sur- Muscovite 58 Puy-de- Jamesonite Galène Wurtzite 1. Tauves, en Popey, près Rar-le-Duc, Meuse |  | | Book (volume) | | antimony Iron-pyrites Polariscope Crocoite Wurtzite 126. Hemimorphite 53 the 122. Pyromorphite... Zinc-spinel, crystals. Simple Zinc-blende, Wurtzite. II. Zinc-ores Native Senarmontite, mony...place the along three directions at cube. Belgium. take depressions the place of the Italy...representing The parallel encrusted in 2, Belgium. three directions crystals shown 7 fig. Welkenraedt...represented several at sandstone Mechernich Belgium. localities Other finely crystallized Przibram |  | | Book (volume) | | considered here, are: Portugal, Spain, France, Belgium-the Netherlands-Extreme Western Germany, Switzerland...brecciated fragments of dark sphalerite. Some wurtzite has been seen in similar positions at the border...sphalerite, galena, and a little chalcopyrite and wurtzite . These do not sound like supergene minerals to...hydrothermal fluids having been mixed with sea water. BELGIUM—GERMANY—NETHERLANDS Middle Mesozoic to Late Mesozoic...t u d y of l e a d - z i n c sediments, Heure, Belgium: G e o l . , v. 7 8 , p . 1 0 1 1 - 1 0 1 6 C |  | | Book | | bright white Ultraviolet SULFIDES Sphalerite Wurtzite OXIDES Franconite HALIDES Griceite Fluorite... sphalerite, 59 FLUORESCENCE wurtzite, and hawleyite. Wurtzite has the same chemical composition...series, and a green phosphor is based on synthetic wurtzite. ORANGE FLUORESCENCE IN SPHALERITE Sphalerite...similar material has come from from Altenberg, Belgium, where there are brown hexagonal crystals 1-2...long-wave response is evident. From Altenberg, Belgium, there are stout, hexagonal, clear crystals of | | | Book | | yellow-orange weak yellow-orange SULFIDES Sphalerite Wurtzite red-orange OXIDES Franconite bright white...minerals, sphalerite, FLUORESCENCE wurtzite, and hawleyite. Wurtzite has the same chemical composition...series, and a green phosphor is based on synthetic wurtzite. ORANGE FLUORESCENCE IN SPHALERITE Sphalerite...similar material has come from from Altenberg, Belgium, where there are brown hexagonal crystals 1-2...long-wave response is evident. From Altenberg, Belgium, there are stout, hexagonal, clear crystals of |  | | Journal (issue) | | cut and polished sections of banded sphalerite, wurtzite, marcasite and galena; brown rosettes o f wavellite;...necessary to break the tough slags. Germany; Moresnet, Belgium; and Wanlockhead, Scotland (Green 1987). Reasons...Atlanta-gehouw, Koninklijke baan 34, De Haan a/zе - Belgium. Information from Sekretariaat А С А М , l o g...Feestzaal, St. Cordulastraat 10, Schoten (Antwerp) Belgium. Information from Sekretariaat А С А М , l o g...to:Rondelez Pierre, Voorhavenlaan, 34В. 8400, Oostende, Belgium. —....a— Garnet Demantoide, Hessonite, Almandin; |  | | Book (edition) | | in class 6/m, nepheline in class 6, zincite and wurtzite in class 6mm; however, it is rare to find specimens...Chalcopyrite Group: Chalcopyrite, CuFeS, Wurtzite Group: Wurtzite, ZnS Niccolite Group Pyrrhotite, Fe:_...tetrahedral layers in sphalerite and wurtzite. The vertical axis of wurtzite is sixfold, but in the structure...slavia, Morocco, and China. SPHALERITE AND WURTZITE Canada, Peru, Yugo- GROUPS These minerals are...cubic stacking of the ZnS tetrahedral layers, and wurtzite having hexagonal stacking (Fig. 9-5). Polymorphs |  | | Book | | Translucent yellow, yellowish-brown. Ottrez, Ardennes, Belgium. H= 6-7, Djj4= 3.7, D(.= 3.74, VIIIB 19. Lasaulx...Cryst. A33 (1977), 355. See also Greenockite, Wurtzite. Cadwaladerite, A1C1(0H)2*4H20, E Amor. Vitreous...MoTranslucent creamy-white, pale rose. Ottrez, Ardennes, Belgium. H=?, Djjj= 3.3, D(,= 3.364, VIIIB 21. De Koninck...brownish-black, reddish. Berneau, Vise, Liege, Belgium. H= 2.5, Djjj= 1.85, D(.=?, VIID 13. Dumont, 1838... Adamantine pale yellow. Richelle, Liege (N), Belgium. H= < 6, Djjj=?, D(.= 5.55, VIIC 17. van Tassel |
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