 | | Journal (issue) | | • Email: info@kristalle.com Harz Mountains, Germany by Günter Grundmann Thomas P. Moore Wendell E... Moore COVER: PROUSTITE, 3.5 cm, from St Andreasberg. Germany, found in 1899; ex collection of Richard... Contents The St. Andreasberg Mining District, Western Harz Mountains, Niedersachsen, Germany .............(Simonin, 1869). The Mining District Western Harz Mountains Niedersachsen, Germany Günter Grundmann Eschenweg...minrecord@comcast.net The geographically tiny St. Andreasberg District of silver mines has an outsized reputation: |  | | Book | | Vienna. Lower left: Cobaltocalcite group. from Lerida. Spain. Folch collection. Barcelona. Lower right:...Netherlands. Back cover The museum ldar-Oberstein. West-Germany. is quaintly situated beneath the Felsenkirche...Copyright 1986 by . Ulrich Burchard, Lalling, West-Germany All rights reserved including the right of reproduction...Printed in Germany Miscellaneous: Design & Lay Out by Rainer Bode, Haltern, West-Germany Type set by...Wurzburg, West-Germany Colour separations by Litho Thungen GmbH, Thungen, West-Germany H. Bari, Musee |  | | Report (issue) | | 64 trace Total 98.96 100.16 (1) Schneeberg, Germany. (2) Gloucester Farm, Postmasburg, South Africa;...gibbsite, kaolinite, hematite. Distribution: From Schneeberg and Eibenstock, Saxony; at St. Andreasberg, Harz...Mountains; from Saalfeld, Thuringia; and elsewhere in Germany. At Krosnowice (Rengersdorf), Silesia, Poland....Sundargarh district, Orissa, India. Large crystals from Gloucester Farm, Postmasburg district, Transvaal |  | | Report (issue) | | 50 13.95 Total 100.10 100.00 Chemistry: (1) St. Peters Dome, Colorado, USA. (2) Al 2 Si 2 O5 (OH)4...Group: Dickite, halloysite, and kaolinite are polymorphs. Kaolinite-serpentine group. Occurrence: ... Of hydrothermal origin. Association: Kaolinite, dickite, mica, quartz. Distribution: Probably at...localities include: in Germany, from Brand-Erbisdorf, near Freiberg, and Erdmannsdorf, Saxony, with large crystals...crystals from St. Andreasberg, Harz Mountains. At Lodµeve, Haute-Vienne, France. From Groby, Leicestershire |  | | Report (issue) | | 93 Total 99.99 100.25 100.00 (1) St. Andreasberg, Germany. (2) Strontian, Scotland. (3) BaSi6 Al2...calcite, leucite, hyalophane, strontianite, quartz, kaolinite, barite, pyrite, sphalerite, galena. Distribution:...for well-studied material follow. In Germany, from St. Andreasberg, Harz Mountains; at Idar-Oberstein,...Co., New York. In the Beaver mine, Thunder Bay district, Ontario, Canada. At Batopilas, Chihuahua, Mexico |  | | Journal (article/letter/editorial) | | Verwitterungsbildungen des Brockengranits nSrdlich St. Andreasberg. Von HORST PILLER. Mit 11 Textabbildungen....grusige Zerfall des G r a n i t s u n d A r t u n d St~rke einer d a m i t p a r a l l e l l a u f e n d...Verwitterungsbildungen des Brockengranits nSrdlich St. Andreasberg. 499 aus einer grSl~eren Anzahl verstreut...B r o e k e n g r a n i t m a s s i v s nSrdlich St. A n d r e a s b e r g u n t e r s u c h t (Geologisehe...Verwitterungsbildungendes Brockengrantisn6rdlich St. Anch-easberg. 501 1. AufsehluB ,,Rehberger Graben" |  | Staude, Sebastian, Werner, Wolfgang, Mordhorst, Teresa, Wemmer, Klaus, Jacob, Dorrit E., Markl, Gregor (2012) Multi-stage Ag–Bi–Co–Ni–U and Cu–Bi vein mineralization at Wittichen, Schwarzwald, SW Germany: geological setting, ore mineralogy, and fluid evolution. Mineralium Deposita, 47 (3) 251-276 doi:10.1007/s00126-011-0365-4 | Journal (article/letter/editorial) | | vein mineralization at Wittichen, Schwarzwald, SW Germany: geological setting, ore mineralogy, and fluid...Co–Ag–Bi–U mining area (Schwarzwald ore district, SW Germany) hosts several unconformity-related vein-type...Universität Tübingen, Wilhelmstrasse 56, 72074 Tübingen, Germany e-mail: markl@uni-tuebingen.de W. Werner Regierungspräsidium...Bergbau (LGRB), Albertstr. 5, 79104 Freiburg i. Br., Germany U–Bi, Bi–Ag, Ni–As–Bi and Co–As–Bi. Important...to highly saline (around 25 wt.% NaCl+CaCl2) at lower temperatures (50–150°C) in Triassic to Cretaceous |  | | Book | | look for. Michael O’Donoghue Proustite (East Germany) 7 Rocks We can define a rock as a large mineral...the fixed index (the ordinary ray) at a higher or lower reading than the moveable (extraordinary) ray. Where...incident beam are retarded by passing through to the lower side of the film, rejoining the main beam either...forms part of an important and extensive mining district. Details of the names of species are taken largely...Found at the Pelican Dives mine, Silver Plume district, and Little Emma mine, Clear Creek County, Colorado |  | | Book | | Ni-silicates and iron. In residual deposits kaolinite may also be found ; this is a product of chemical...Such metals as Cu, Ag and Zn often pass from a lower oxidation zone to a deeper cementation zone where...is harder and the test may proceed to the next lower grade. Not much force on the scratching point is...aggregates or weathered minerals have usually a lower hardness than the single or unaltered crystals of...For instance, hematite (hardness 6) will have a lower hardness in the radiating or earthy form than in |  | | Book | | results in a pseudo-symmetry, i.e. crystals of lower symmetry are twinned in such a way that they form...between that of the sample and that of the next lower grade. In this case we consider the hardness to...Different scratch hardness on kyanite 20 somewhere lower grade adding a half-grade to it. Although the determination...fibrous and porous aggregates often seem to have a lower hardness because of the blank spaces between individual...Nickel Pyrites, Nickel Glance) Harzgerode, Harz, Germany tin-white to light steel-grey metallic opaque |  | | Report (issue) | | of volcanic materials to montmorillonite and kaolinite............................................ 58...of volcanic materials to montmorillonite and kaolinite; D, Varved sedimentary clay...... 58 3. A, Bentonite...is favored by alkaline conditions, and that of kaolinite by acid conditions. These relations are modified...described by Dufrenoy (1856, p. 583), from Confolens, at St. Jean-de-Cole near Thiviers, France, and delanonite...in silica, up to at least 5:1, while others are lower, reaching 3:1 or even 2:1, without change in structure | | | Book | | Ni-silicates and iron. In residual deposits kaolinite may also be found; this is a product of chemical...Such metals as Cu, Ag and Zn often pass from a lower oxidation zone to a deeper cementation zone where...is harder and the test may proceed to the next lower grade. Not much force on the scratching point is...aggregates or weathered minerals have usually a lower hardness than the single or unaltered crystals of...For instance, hematite (hardness 6) will have a lower hardness in the radiating or earthy form than in |  | | Journal (article/letter/editorial) | | de/chemer The fluorite deposits NE of Regensburg, SE Germany—A mineralogical and chemical comparison of unconformity-related...D-30631 Hannover, Germany Bürgermeister-Knorr Str. 8, D-92637 Weiden i.d.OPf., Germany In der Zell 4, D-93149...D-93149 Nittenau, Germany a r t i c l e i n f o Article history: Received 21 November 2011 Accepted...REE distribution SE Germany a b s t r a c t A world-class fluorite mining district was located NNE of...Nabburg-Wölsendorf, Germany. Together with some smaller mining sites near Bach a.d. Donau, Germany, it provided |  | | Journal (issue) | | Institute of Romania Essaid Bilal, Ecole des Mines, St. Etienne, France M. S. Pandian, Pondicherry University...Metaliferi Mts. 15 4. Baia Mare metallogenic district 64 5. Other sources of native gold from Romania...and engineering staff, many of them educated in Germany. The collection has been added with new gold specimens...exhibited at the Mining Museum in Heidelberg – Germany. Numerous samples illustrate a variety of assemblages...unit. For instance, in BradSăcărâmb metallogenic district, the Au:Ag ratio is relatively uniform (45% to |  | | Book | | immensely popular handbook of minerals appeared in Germany I obtained a copy fo! my personal library and was...culture, derives its name from the saltmining district of Hallstatt in Upper Austria, where many prehistoric...of these fourfold axes in all. The considerably lower symmetry of a monoclinic crystal is shown in Fig...crystallographic symmetry of a body may often be lower than its apparent geometric symmetry. In a pyrite...symmetr:y ar:e no longer: present (Fig. 16a, p. 93). A lower: cr:ystallogr:aphic symmetr:y is often only shown |  | | Journal (article/letter/editorial) | | by Verlag Gustav Feller-Nottuln, Kettwig/Ruhr, Germany. Pp. 37*iv*25 plates. (Publication No. 5 oI Opuscula...mineral, although a member of the kaolinite group, is not kaolinite The data are best reconciled with...with an alternate stacking of the lower and upper silica sheets, originally proposed by Gruner in his study..."Interrelationships of structure and genesis in the kaolinite group," was contributed by Thomas F. Bates. This...the available data bearing on the genesis of kaolinite, endellite, halloysite, and allophane. A diagram |  | | Journal (article/letter/editorial) | | OF AMERICA lt9 ABSTRACTS ULLMANNITE FROM ST. ANDREASBERG, HARZ. K. MrprorrNnn. 2.Kris|.,56,105-7,(1921)...W. IRIDOSMINE CRYSTALS FROM RUBY CREEK, ATLIN DISTRICT, B. C. T. L. Gr,nnurr,r. Unio. Toronto Stud.i...granite to a red clay which has the compositionof kaolinite, and apparently owes its color to a Mn"' compound | | | Book | | results in a pseudo-symmetry, i.e. crystals of lower symmetry are twinned jn such a way that they form...that of the next lower grade. In this case we consider the hardness to be of the lower grade adding a half-grade...fibrous and porous aggregates often seem to have a lower hardness because of the blank spaces between individual...Nickel Pyrites, Nickel Glance) I Lu erode, Harz, Germany tin-white to light steel-grey greyish black metallic...Py rite, Mispickel; Freiberg, Ore Mountains, Germany tin-white to grey greyishblack metallic opaque |  | | Journal (article/letter/editorial) | | SiaOo(OH)a layers. In this respect it differs from kaolinite which consists of repetitions of one AI4O4(OH)8layerand...were present it is difficult to understand why kaolinite would not form instead of montmorillonite. rn...Shannon : I'oc.eit. (1926). 12. Nontronite, Andreasberg, Harz, N. S. Kurnakov and V. V. Cernych: Ioc'...W.Australia,24,107 (1938). 14. Nontronite, St. Andreasberg,Harz, K. S. Nikogosyan: Min. Abst.,7,255 (1939).... 17. Nontronite, Har z, E. O. Iskyul.: M in. Ab st., 6, 141 ( 1935). 18. Chrome-beidellite: D. P. Serdynchenko: |  | | Journal (issue) | | net MARCH–APRIL 2019 Articles The Candelaria District Mineral County, Nevada .........................adams@aero.org Bonanza silver ore made the Candelaria District one of Nevada’s largest silver producers in the...whiteite-(CaMgMg). INTRODUCTION The Candelaria district is located in southeastern Mineral County, along...account of the earlier history of the Candelaria district was compiled from Chalfant (1942), Shamberger...group of Mexicans in 1863. The Columbus mining district, then in Esmeralda County, was established around |  | | Journal (issue) | | SCHNORRER-KÖHLER, G.: Das Silbere rzrevie r St. Andreasberg, Harz 189 GLO MB, A.: Der „ Dicke Stein"... Heidelberg Mai 1983 Das Silbererzrevier St. Andreasberg, Harz Von Günther SCHNORRER-KÖHLER Teil II...Sekundärminerale in St. Andreasberg zeigt, daß die Sekundärminerale in Andreasberg wenig bzw. sehr sporadisch...SCHNORRER-KÖHLER. G .: Das Silbcr~rzrcvicr St. Andreasberg. Harz Abb. 1: Calcitkristallc mit pseudohexagonalem... SCHNORRER-KÖHLER, G .: Das Silbererzrevier St. Andreasberg. Harz 1.8.2. andere Silikate 1. Prehnit 2 |  | | Journal (article/letter/editorial) | | mineralization stages in the eastern Harz Mountains (Germany) by paleomixing lines JENS SCHNEIDER,1,* UDO HAACK...Justus-Liebig-Universität, Senckenbergstr. 3, D-35390 Giessen, Germany 2 Landesamt für Geologie und Bergwesen Sachsen-Anhalt...Sachsen-Anhalt, Köthener Str. 34, D-06035 Halle, Germany (Received February 20, 2002; accepted in revised...mineralization in the eastern Harz Mountains, Germany. These veins are characterized by a principal quartz-sulfide...vein-type deposits in the eastern Harz Mountains, Germany. Fig. 1. Two-dimensional illustration of the mixing |  | | Book | | largest group are further subdiv ided according to st ructure. All silicates are based on the 'silicate...(420 tons); others localities include Mansfeld (Germany), Bisbee (Arizona), Tsumeb (Namibia) and Surra...native sliver include Kongsberg (Norway), Freiberg (Germany), Jachymov (Czech Republic), the Comstock Lode...(Italy), ldrija (Slovenia), Moschellandsberg (Germany) and Juan Cavelica (Peru). Almaden Is the oldest...Is found In Erzgeblrge and the Harz Mountains (Germany), Glkos (Russia), Sterling Hill (New Jersey, USA) | | | Book | | (420 tons); others localities include Mansfeld (Germany), Bisbee (Arizona), Tsumeb (Namibia) and Surra...native sliver include Kongsberg (Norway), Freiberg (Germany), Jachymov (Czech Republic), the Comstock Lode...(Italy), ldrija (Slovenia), Moschellandsberg (Germany) and Juan Cavelica (Peru). Almaden Is the oldest...Is found In Erzgeblrge and the Harz Mountains (Germany), Glkos (Russia), Sterling Hill (New Jersey, USA)...USA), Jachymov and Pribram (Czech Republic) and St Marle-aux-Mlnes (France). As Colour: light grey tarnish |  | | Book | | attitude to life. Marcasite. 100 mm. Misburg. Germany 7 i 1. Elements Copper. 42 mm. Cornwall, UK...: Vie in) were found Silver. 52 mm. Freiberg. Germany Copper. 120 mm. Keweenaw Peninsula. U.S.A. in...have been found. Silver, 55 mm. Schwarzwald. Germany Beautiful specimens of wire silver with wires...are known from Freiberg, Schneeberg and St. Andreasberg, Germany. Wires several cm long were also found...industry, measuring instruments, metallurgy. Germany. They are also known fioin Sala, Sweden; Les Chalanches |
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