 | | Catalog/List | | 50x40x30mm. £9. 6) NATIVE BISMUTH. Schneeberg, Saxony, Germany. A very good solid mass of silvery granular...60x35x30mm. £875. 9) CASSITERITE. Graupen, Bavaria, Germany. A group of about eight lustrous jet black cassiterite...Geological Museum)". 320x165x approx. 8mm. £295. 21) COVELLITE. Bor, N.W. of Zajecar, Serbia. A very rich and...veinstone showing typical dark iridescent steel blue covellite with enargite in conglomerate matrix. Old Freiberg...3 6 ) SKUTTERUDITE var CHLOANTHITE. Schneeberg, Saxony, Germany. Quartz veinstone matrix with a 40x40mm |  | | Journal (issue) | | Werfen, Germany, 15177 Argentite after Silver: I, C 2 Himmelsfiirst, near Freiberg, Saxony, 800; "Peru...Caledonia, New York, 10152 "Cantonite." See covellite after galena Carnotite after Wood: II, B 3 Naturita...Tlalpujuhua, Mexico, no Spec. No.; Braunsdorf, Saxony, 4510; Charcas, San Luis Potosi, Mexico,' 17478-9;...East Pool Mine, Camborne, Cornwall, 3636; Schneeberg, Saxony, 35612-3; locality unknown, 4243. Also pseudomorphous...after Covellite: I, C 2 Butte, Montana, 17247. After a large aggregate of well formed covellite crystals |  | | Journal (article/letter/editorial) | | nukundamite-bearing univariant reactions investigated by Schneeberg (1973) and Roseboom & Kullerud (1958). The position...summarized by Robie et al. (1994). Abbreviations: Cv, covellite; Py, pyrite; Bn, bornite; Cp, chalcopyrite; Nk...represent reversal brackets from the data of Schneeberg (1973). Symbol size is proportional to analytical...12:36 THE GIBBS FREE ENERGY OF NUKUNDAMITE Schneeberg (1973) studied equilibria involving a phase that...measured by Schneeberg (1973) actually involved the phase nukundamite rather than idaite. Schneeberg (1973) |  | | Book (edition) | | Polarite Sobolevskite Cherepanovite Millerite Covellite Klockmannite Idaite Valleriite Tochilinite Vyalsovite...Affiliation/Address Luzerner Str. 10-12, D-12205 Berlin, Germany – Freie Universität Berlin, FB Geowissenschaften...Mineralogie, Malteserstr. 74-100, D-12249 Berlin, Germany Bundesanstalt für Geowissenschaften und Dr. Frank...Stilleweg 2, D-30655 HanDr. Thomas Oberthür nover, Germany Dr. Thomas Kenkmann Museum für Naturkunde der ... zu Berlin, Invalidenstr. 43, D-10115 Berlin, Germany Prof. Dr. Robert Marschik & Ludwig-Maximilians |  | | Catalog/List | | }~-x2ixli". £l6.5o. NATIVE B~5MUTH. Schneeberg, Saxony, Germany. Very rich vein section consisting of...to same of the crystal Faces. lx+.xi". £L 25. COVELLITE. Stewart Mine, Butte, Silver Bow Ca., Montana...Specimen C - l-rxlt". 8Op. HEMATITE. Altenberg, Saxony, Germany. Unusual very sharp, bright black, twinned...l~-xltxl-t". £3.25. PUCHERITE. Puchershaft, Schneeberg, Saxony, Germany. Small, sharp, sparkling p::-~e brownish... lixli,". £4.50. SKUTTERUDITE. Bieber, Hesse, Germany. Very choice, :'harp, silvery grey, crystals and |  | | Catalog/List | | Paul.A.Lowe@BTintemet.com January 2000 £6.00 COVELLITE, Butte, Montana, USA. Blacl...SC. £18.00 47 COBALITE & ERYTHRITE, Schneeberg, Saxony, Germany. Sofid and metallic richly xtllized....DOLOMITE & QUARTZ, Schlema-Hartenstein, Erzebirge, Germany. Golden xtls to 6mm. Lovely old display piece.... £45.00 80 PROUSTITE & SMALTJTE, Sclmeeberg, Saxony, Gennany. Heavy dark xtl developments. Olab. LMI |  | | Journal (article/letter/editorial) | | and Kullerud, 1958; Yund and Kullerud, 1966; Schneeberg, 1973; Sugaki et al., 1975, 1981a; Kojima and...= alunite, bn = bornite, chl = chlorite, cv = covellite, cp = chalcopyrite, dg = digenite, gal = galena...beam current, bornite standard 2 Bornite and covellite standards 0361-0128/98/000/000-00 $6.00 502 ...nukundamite and chalcopyrite. Bornite replaced by covellite locally. B. Nukundamite replaced by bornite with...D). D. Alteration of Main-stage nukundamite to covellite-chalcopyrite during Late stage. Point counting |  | | Journal (article/letter/editorial) | | alteration products was reported, involving bornite, covellite, zeunerite, boltwoodite, uranophane, erythrite...reminiscent of those of the classical sites of Schneeberg in Saxony, Wittichen in the Black Forest, and the...Walpurgis vein at the Weisser Hirsch mine at Schneeberg, Saxony (Weisbach, 1871, 1877). Walpurgite is of |  | | Journal (issue) | | 2018 Ctontento The Schneeberg Mining District, Western Erzgebirge, Saxony, Germany ...................................................... 651 Famous Schneeberg Silver Specimens ................. 709 The "Find...spray, 4.4 cm, in a quartz-lined pocket, from Schneeberg. Gail and Jim Spann collection; Tom Spann photo...engraving depicts various historical mining scenes at Schneeberg including the famous 1477 "Silver Table" discovery...Thomas P. Moore7 The Schneeberg District in the famous Saxon Erzgebirge of Germany has been a source of |  | | Catalog/List | | with small Realgar crystals and matrix, Schneeberg, Germany, 2zx5, $5.00. Native Arsenic with rock, lxl...waterworn hexagonal crystals, g" diameter, $1.00. COVELLITE, Butte, Montana. Group of black irridescent crystal...least six movable water bubbles, lixlOj, $8.00. Germany. Double terminated crystal with clay inclusions...1") on lava matrix, 2x3, $4.00< KERMESITE, Saxony, Germany. Dull red micro crystals in vugs, 1x2, $5.00...Andreasberg, Germany. Very deep red crystals massed together, 4XI, $6.00. Freiberg, Germany; Deep red,crystallized |  | | Journal (article/letter/editorial) | | sulfurfugacities bufferedby bornite+ pyrite+ chalcopyrite, covellite+ pyrite+ idaite, pyrit.e+ bornite+ idaite, pyrite+...measurements of •o by the Ag2,•S. 507 508 E. P. SCHNEEBERG Temperature,øC I00 146 200 300 400 440...19 -9.49 4- 0.20 SillfurFugacityBufferedby Covellite q- Pyrite q- Idaite 1617 365 1928 344 2362...monosulfideq- vaesite, covellite + high digenite, bornite+ pyrite -3-chalcopyrite, covellite+ pyrite + idaite...thetwo-phase field. Equilibrium 512 E. P. SCHNEEBERG Temperature,øC -I.0 - -2.0 - 200 250 300 |  | | Catalog/List | | and minor greenish Epidote. 2txl~". £3. 39. COVELLITE. Stewart Mine, Butte, Silver Bow Co., Montana...analogue of Childreni teo lt5. ERYTHRITE. Schneeberg, Saxony, Germany. Rich, radiated flattened crystals coating...2txlt". 50p. 50. HELVINE. Schwarzenberg, Saxony, Germany. Small sharp waxy yellow tetrahedral crystals...2txlt". £5. -7NuTIVE SILVER. Marienberg, saxony, Germany. Silvery masses and \'Iires protruding from |  | | Catalog/List | | Quarry, Maroldsweisach, Lower Franconia, Bavaria / Germany; Colorless long prismatic crystals of 5 mm, rich...xls Pferdeköpfe Pass, Wippra, Harz Mts., Saxony-Anhalt / Germany; "Partial pseudomorphosis from Brianyoungite...xls Pferdeköpfe Pass, Wippra, Harz Mts., Saxony-Anhalt / Germany; Light blue crystal aggregates of up to...first discovery of the rare Cu- Zn mineral in Germany; KS 38,00 Clinochlore xls Yellow Cat Mine, Santa...Quarry, Maroldsweisach, Lower Franconia, Bavaria / Germany; Colorless rhombic crystals of up to 2 mm in size |  | | Journal (article/letter/editorial) | | ONOCLINIC Locality: Am Roten Berg, Schneeberg–Neustädtel, Saxony, Germany. Occurrence: Found in the oxidation...nickellotharmeyerite, two new minerals from Schneeberg, Germany: description and crystal structure. Neues...Probably also from the Pucher Shaft, Schneeberg, Saxony, Germany. Occurrence: Associated minerals are:...wulfenite, quartz and chalcocite. The mineral from the Saxony locality is associated with bismuthian nickellotharmeyerite...appearance: Spherical aggregates (up to 0.5 mm); from the Saxony locality, tiny overgrowths <10 m thick. Physical |  | | Journal (article/letter/editorial) | | from Sugaki et al., 1975). Abbreviations: cv, covellite; nk, nukundamite; bn, bornite; cp, chaleopyrite;...6 -45.0 -50.0 -30.6 -35.2 -34.4 a b b b a, Schneeberg (1973); b, Barton and Skinner (1979). of the...unstable below c. 227~ decomposing to pyrite, covellite and bornite. Although no thermodynamic data for...galena, pyrite, chalcopyrite and small amounts of covellite, marcasite, enargite and luzonite (e.g. Frenzel...wurtzite, galena, pyrite, enargite, chalcopyrite, covellite, nukundamite, chalcocite, marcasite, luzonite |  | | Journal (article/letter/editorial) | | accepted 9 July 2002 Abstract Almost 30 years ago, Schneeberg [Econ. Geol. 68 (1973) 507] used the Ag/AgI/Ag2+xS...re-examined three of the reactions investigated by Schneeberg (1973), and expanded this work to include four...sphalerite. Other Cu – Fe – S sulfides, including covellite (cv), idaite (id), bornite (bn) and cubanite (cb)...lower sulfur fugacities than were obtained by Schneeberg (1973). For reactions (2) and (7), the present...results show excellent agreement with those of Schneeberg (1973) at higher temperatures. However, at lower |  | | Journal (article/letter/editorial) | | Bornite--linnaeite 8. Cassiterite--tantalite 9. Chalcocite---covellite 10. 11. 12. 13. Chalcocite--stromeyerite Ch...illustrateexcellentexamplesfrom Katanga, from Germany and from Sweden. Additionalexampleswith a bornitehosthave...restudyof the relationof covelliteand chalcocite. Covellite was shownto be solublein chalcocite but little...731-794, 1940. •8 Bateman, A.M., and Lasky, S. G.: Covellite-ehaleoeitesolid solution and exsolution. EcoN...years, notably from Sudbury,2ø South Africa, • Schneeberg,2• and Oregon.23 The crystallographyof the c |  | | Journal (article/letter/editorial) | | University] at 11:57 17 November 2014 bluish covellite-like colors. The polybasite aggregates commonly...and Braunsdorf, Freiberg, Schneeberg, Johanngeorgenstadt, and Pohla, Saxony (Lieber and Leyerzapf 1986;...An historical perspective on silver mining in Germany. Mineralogical Record 17 (1): 3–18. Murdoch, J |  | | Journal (article/letter/editorial) | | cobalt) at Jachymov, Schneeberg,Johanngeorgenstadt, and elsewherein Bohemiaand Saxony. (3). So-calledepithermal...in placeswith galena, chalcopyrite,blendeand covellite. They are found characteristicallyin the central...Pegmatite Andlau, Vosges Natzwiller, Vosges Lausitz, Saxony Black Forest (7 groups) Sierra de Albarrafia, |  | | Journal (article/letter/editorial) | | Quebec; Sierra, Gorda, Chile; and Schneeburg, Saxony. Nearly complete suites o f native elements, sulfides...samsonite crystals, St. Andreasberg, Harz Mountains, Germany (4.3 cm). Figure 54: Light yellow anglesite crystal...reddish grey pyrargyrite crystals from Schneeberg, Niederschlema, Saxony (7 cm). 62 ROCKS AND MINERALS Figure...sternbergite crys tals from Joachimstal, Saxony (7 cm). Mountains, Germany (5 cm). Original George English price...Mosel Colquechaca, Bolivia (4.8 cm). Valley, Germany (13 cm). Figure 100: Golden needles of wakabayashilite |  | | Journal (article/letter/editorial) | | .................. 64ø Chalcopyrite, bornite,covellite,chalcocite andcuprite......... 644 Gypsum by anglesite...silver. Moderate:chalcopyrite, bornite,sideriteand covellite,by metallic silver. (d) Excellent: sphalerite...sphalerite,galena, chalcopyrite,marcasite,bornire and covellite,by chalcocite.Moderate:pyrite,arsenopyrite, malachite...covellite.Moderate: galena, by covellite. Less good: sphalerite,by covellite. (f) Good:marcasite, pyriteandpyrrhotite...bornireor (and) chalcopyrite. Moderate:chalcopyrite, covellite, chalcocite, andenargite, by bornireor (and) chalcopyrite |  | | Journal (article/letter/editorial) | | sulphides were probably pyrite, enargite, and covellite, together with minor amounts of chalcopyrite,...DuriDg the 15th Century and later the Iirzgebirge of Saxony u'as a rich and important m.ininE area, yielcling...yielcling a rvide variety of ores. Annaberg, Schneeberg,Freiberg, Altenberg, m.inerallocalities known to J |  | | Journal (article/letter/editorial) | | and Guanajuato (Mexico), RESULTS Schwarzenberg (Saxony) and Rezbanja (Roumania) etc. In nearly the same...Antonstal, 102 59 (Saxony) Hessen (FRG) Erzgebirge G5 2422.3 Schneeberg (Saxony) BM Bonser vein...Rezbanja (Roumania), pyrite with -12°/oo for Schneeberg (Saxony), Bisbee (Arizona) sulfides with +2% to -3~oo...determinations of coexisting "blue remaining covellite", which is only stable below 157oc (Moh 1964)...ermI/zmtions sre cmlculmted, The dst@ f o r Scbwarzenberg (Saxony) of Antonstal (Erzgebirge) of 327°C and Cornwall |  | | Book (edition) | | Mineralogie, Malteserstr. 74-100, D-12249 Berlin, Germany Earth Science Department / College of Science,...Feld 236, D-69120 Heidelberg, Germany Sodenstr. 19, D-12309 Berlin, Germany Graslitzer Str. 5, D-63791 Karlstein...Karlstein am Main, Germany Ludwig-Maximilians Universität, Department für Geo- und Umweltwissenschaften...Ressourcengeologie, Luisenstr. 37, D80333 München, Germany Bundesanstalt für Geowissenschaften und Rohstoffe...Rohstoffe (BGR), Stilleweg 2, D-30655 Hannover, Germany Dr. Salah Al-Khirbash Prof. Dr. Rainer Altherr & |  | | Catalog/List | | £2. 21. CHh.LCOPYRITE. Dreislar, sauerland, Germany. Fine, bright, sharp crystals to 5 mm. in size...reudish tarnished crystaline mass. 2xlt". £3. 27. COVELLITE. But"Ce, Silver Bow Co., Hontana, U.S ..... lttractively...2xl". 50p. 41. GaLEN1l.. Neudorf, Harz Mts., Germany, Bri':;ht, large, intergrown modified crystals...minor Quartz. ltxl". 50p. Ilfeld, H::lrz Mts., Germany. Brilliant, black, terminated needly crystals lining...2tx3"x2". £1.50. 65. PYnOLUSITE. Giessen, Hesse, Germany. Long stalactitic metallic grey masses with a botryoidal |
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