 | | Journal (article/letter/editorial) | | Alps: the Waldenstein hematite deposit (Austria) Abstract The specularite deposit at Waldenstein is an ported...of the ore ocepigenetic replacement/vein-type hematite mineraliza- curred at shallow crustal levels where...Austroalpine Crystalline Complex • few meters of the hematite veins. Radiometric dating of Tertiary mineralization...(magnetite, ilmenite) being partly replaced by hematite and Introduction chlorite during the main phase...stable isotope investigations indicate that Waldenstein is one of the few mines world-wide which formation |  | | Journal (article/letter/editorial) | | Geologische Bundesanstalt, PO Box 154, A-1031 Wien, Austria ing, although ponded metamorphic ¯uids and mantle...considered to be late to post-tectonic (HuÈttenberg, Waldenstein, Gastein) (Petrascheck 1947; Clar 1953; Petrascheck...represent active mines (Erzberg, Rabenwald, Waldenstein), while others are either exhausted or at present...Upper Austroalpine tectonic unit, the former copper mine at Mitterberg exploited a quartz-carbonatechalcopyrite...U-Pb method (90 Ma: Petrascheck 1978). The iron ore mine at Erzberg is well known in the European literature |  | | Journal (article/letter/editorial) | | Geowissenschaften, Montanuniversit~it, A-8700 Leoben, AUSTRIA Geologische Rundschau, 73, 1, 131 - 147, Stuttgart..."Basis-Amphibolite" (with migmatite, ortho-, augenand biotite-plagioclase gneiss) of unknown age follows in the P e n n...mineralisation exploited at the Felbertal/Mittersill mine. The ore occurs in banded quartzite and stockwork...the Achselalm/Hollersbachtal west of the scheelite mine. The L o w e r A u s t r o - A 1p i n e "quartzphyllites"...(COL[NS et al. 1980). Important deposits are: hematite and magnetite (Graz, Lavam/ind), stratiform and |  | Eberlei, T., Johnson, T. E., White, R. W., Roffeis, C., Stüwe, K. (2014) Thermobarometric constraints on pressure variations across the Plattengneiss shear zone of the Eastern Alps: implications for exhumation models during Eoalpine subduction. Journal of Metamorphic Geology, 32 (2) 227-244 doi:10.1111/jmg.12069 | Journal (article/letter/editorial) | | of Graz, Universit€ atsplatz 2, A-8010, Graz, Austria *Present address: Department for Lithospheric Research...University of Vienna, Althanstraße 14, 1090, Vienna, Austria † Present address: Department of Applied Geology...samples with the inferred peak assemblage garnet + plagioclase + muscovite + biotite + quartz + rutile ilmenite...of Graz T31 N PG13 Koralpe T15 Saualpe Wolfsberg Großer Speikkogel Krakaberg Platt gneisens Are...contain the inferred peak assemblage garnet + plagioclase + biotite + muscovite + quartz + rutile ilmenite |  | | Journal (article/letter/editorial) | | Orlberg, Kaiserstuhl, Baden, K-rich trachyte, 334. Wolfsberg, Harz, gersdorffite, 38. British Isles :ENGLAND...quarry; Sheltor ; and Staple Vor. WALES Benallt mine, Caernarvonshire, bannisterite, ganophyllite, 893;...914. B u l g a r i a (137~ArapHa) Iglika, Elhovo district, thaumasite, 1003. R u s s i a (POCCHa) Baranchin... Co. Galway, amphibolite, axinite, epidote, plagioclase, tourmaline, 747. ASIA Arabia South Oman, meteorite...Corsica, priderite, 867. 616. Kajlidongri, Jhabua district, Madhya S p a i n (Espafia) Pradesh, bixbyite |  | | Book | | times, and there is evidence of at least one flint mine dating from this period. Finely worked and polished...derives its name from the saltmining district of Hallstatt in Upper Austria, where many prehistoric finds have...anion and allows great variation in composition. Plagioclase feldspars provide a good example of this (compare...needles or fibres radiate from a common center (hematite or reniform limonite, Pls. 13, p. 73, and 21 ...chlorite, serpentine, clay minerals, orthoclase, plagioclase, nepheline, leucite. must be mentioned. Examination |  | | Journal (article/letter/editorial) | | ratio (Zn,Fe,Pb) : S = 1 : 0.9. Stibnite from Wolfsberg was found to contain nothing but antimony and...598).-Chalcostibite was first described, from Wolfsberg, in the Harz, in 1835, as being orthorhombic and...made by Laspeyres (Abstr., 1892, l % 4 ) on the Wolfsberg mineral agreed completely with those previously...Chalcostibitie has recently been found at the Pulacayo mine, Huanchaca? Bolivia, where it occurs with tetrahedrite...28, 607--609).-The veins of the Pulacago silver mine, at Huanchaca, are in a trachytic quartz-porphyry |  | | Book | | periods of stability PLANET | 114 San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 om are uncommon...cosmetics, or as sources of color for ceramic glazes. Hematite and other iron oxides create reds and browns,...different optical properties. The play of colors on hematite comes from yery thin surface layers similar to...mineral pigments. LEFT: Malachite, Bwana M’Kubwa Mine, Ndola, Copperbelt, Zambia * 22 x 26x 16 cm 22...* 20 x 18 x 14. cm Bladed stibnite, Ichinokawa Mine, Saijo, Shikoku, Japan * 10 x 1x 1 om Acicular | | | Book | | A CHANGING PLANET 11 Vanadinite, San Carlos district, Chihuahua, Mexico * 8 x 4 x 2 cm Mineral Species...cosmetics, or as sources of color for ceramic glazes. Hematite and other iron oxides create reds and browns,...different optical properties. The play of colors on hematite comes from very thin surface layers similar to...mineral pigments. LEFT: Malachite, Bwana M’Kubwa Mine, Ndola, Copperbelt, Zambia * 22 x 26 x 16 cm 22...Namibia * 20 x 18 x 14 cm Bladed stibnite, Ichinokawa Mine, Saijo, Shikoku, Japan * 10 x 1 x 1 om Acicular |  | | Book | | mineral particles (eg inclusions of chlorite and hematite in jasper). Allochromatic minerals display other...unaltered crystals of the same mineral. For instance, hematite (hardness 6) will have a lower hardness in the...named from the colour of their streak, such as hematite - blood, crocoite - saffron and xanthocone - yellow...exhibits a cleavage along straight planes and plagioclase cleaves obliquely, while euclase has perfect...mineral magnetite; to a lesser extent by pyrrhotite, hematite and wolframite. A large number of minerals are |  | | Journal (issue) | | in 1978 by Donald Elliott at the Diamond Willow mine near Thunder Bay, Ontario. Photo by Harold and Erica...Rubellite Tourmaline on Albite from the Itatiaia mine, Minas Gerais, Brazil. The Rubellite crystal measures...began with the opening of the Thun der Bay amethyst mine in 1967, and in 1975 amethyst was declared by the...best known occurrence is the Thunder Bay amethyst mine, at Elbow Lake, which has been in operation since...Diamond Willow mine, operated by Gunnard Noyes and also by the author, the Ontario Gem mine, the Dorion | | | Book | | illustrated Encyclopedi of the World’s Rocks and Mine re L A R E N MI OF THE WORLD Rudolf Duda and...mineral particles (eg inclusions of chlorite and hematite in jasper). Allochromatic minerals display other...unaltered crystals of the same mineral. For instance, hematite (hardness 6) will have a lower hardness in the...named from the colour of their streak, such as hematite — blood, crocoite — saffron and xanthocone — yellow...exhibits a cleavage along straight planes and plagioclase cleaves obliquely, while euclase has a perfect |  | | Journal (article/letter/editorial) | | Belnhausen, Darmstadt, Germany, ankerite, 138. Benallt mine, Caernarvon~hire, Wales, bannisterite and ganophyllite...studies of natural fabrics. I. Growth-fabrics in hematite kidneyore and in fibrous calcite, 70. BRAITHWAITE...Charnockites, origin of colour of, 1135; India, zoned plagioclase in, 805. Chert, Devonshire, metamorphism of,...dehydration, 791 ; and see riebeckite. Crystal growth in hematite, 625. 1193 I)AS(~Ut'TA (I). R.), Thermal deconq}osition...and boulangerite in the Rajpura belt, Udaipur district, Rajasthan, India, 1174. DAs GUeTA (S. P.), Paragenesis |  | | Journal (issue) | | datolite, quartz, calcite, corundum, microcline, plagioclase, spodumene, fluorite, and spine) (with extrinsic...calcite; crystal aggregates 15 cm in size. Vеrklinii Mine, Dabugorsk, Pпmorskii Krai, Russia. Specimen: V...genesis of these minerals. Photoluminescence o f plagioclase and microcline caused by Еи2+ impurity is very...markedly increase near the mica-rich vein zones. Plagioclase with Eu luminescent centers is also typical of...agent in emerald) and europium (luminogen in plagioclase) were extracted from the surrounding basic and |  | | Book (volume) | | up 165 for to Temiskaming Cochrane district read district. Ref. 4, under oruetite, add See also... for VVakatipu district, CoUingwood, 294 Zealand read Wakatipu 303 line district, 8 in synonomy...and the corresponding citation (Hudson Bay 309 mine). in Ref. 4, line Z, for 670 read 676. 310 in...pageite read paigeite. for Algoma district read Sudbury District. in the left Itand figure in the...say that this guarantee did much to deterrepaid. mine the award of the grant. To Mr. W. 0. Wiley, Chairman |  | | Journal (issue) | | Metaliferi Mts. 15 4. Baia Mare metallogenic district 64 5. Other sources of native gold from Romania...metal gold pans, as well as a replica of the famous mine carriage which is considered to be the oldest of...unit. For instance, in BradSăcărâmb metallogenic district, the Au:Ag ratio is relatively uniform (45% to...metallogenic criterion: province, subprovince, district, sector, field/ node (Fig. 2) . 7 Fig. 1. Example...relevant metallogenic units (node, field, sector, district) were made. For samples sourced abroad, a summary |  | | | | gadolinite 85 gahnite 24 galaxite 24 heliodor 93, 93 hematite 25, 25, 27 hemimorphite 86, 87 hercynite 24 hessonite...24 piedmontite 88 pirssonite 49 pistacite 87 plagioclase 112 platinum 4 pleonaste 24 plumbojarosite 58...especially near Kimberley); diamonds from the Kimberley mine are embedded in ultrabasic blue rock called kimberlite...carats, equal to 621 grams) was found at the Premier Mine; named the Cullinan diamond, it was presented to...found at Butte, Montana, and the Copper River district of Alaska. A much rarer mineral is covellite, |  | | Journal (article/letter/editorial) | | alteration assemblage also includes finely crystalline hematite, goethite, Mn-oxide films and illite formed by...clay. Some regions of glass contain dispersed hematite crystals, identified by their SAED patterns and...and composition. In other regions, hematite coexists with goethite in aggregates of glass alteration products...shows no alteration. Exsolution lamellae in plagioclase that are richer in Ca (light contrast, labelled...order of magnitude less reactive than either plagioclase. The general order of reactivity agrees with |  | | Book | | hauynite 114,116 hedenbergite 96 heljodor 93, 93 hematite 25, 25, 27 bemimorphite 86, 87 hercynite 24 hessonite...24 piedmontite 88 pirssonite 49 pistacite 87 plagioclase 112 platinum 4 pleonaste 24 plumbojarosite 58...59 zippeite 62 zircon 77, 78, 78 zoisite 88 THE MINE LKINGDOM All physical bodies in Nature can be...or slightly rotated Vitreous. Like glass 3 THE MINE Class I: native ·elements Chemical elernents found...especially near Ki1nberley); diamonds from the Kimberley mine are embedded in ultrabasic blue rock called kimber/ite |  | | Book | | oxygen-for examp le. quartz (S10 2), rutil e (Ti0 2). hematite (Fe,0 1). Also in this category are the hydroxides...Chemical Classification Siderite, 8ri.iderbund Mine, near Eiserfeld (Siegerland, Germany), 3x almost...specimen shown here comes from the Eagle's Nest Mine in California, and its actual size is about 2 inches...be scratched with fluorite, take the next-harder mine ral from the scale, until yo u find a mi ne ral...minerals: Sulfur 1.96 Quartz 2.65 Diamond 3.52 Hematite 5.30 Scheelite 6.10 Cassiterite 7. 10 Uraninite | | | Book | | haiiyhite 114, 1/6 hedenbergite 96 heliodor 93, 93 hematite 25, 25, 27 hemimorphite 86, 87 hercynite 24 hessonite... piedmontite 88 pirssonite 49 pistacite 87 plagioclase 112 platinum 4 pleonaste 24 plumbojarosite 58...especially near Kimberley); diamonds from the Kimberley mine are embedded in ultrabasic blue rock called kimberlite...carats, equal to 621 grams) was found at the Premier Mine; named the Cullinan diamond, it was presented to...found at Butte, Montana, and the Copper River district of Alaska. A much rarer mineral is covellite, |  | | Book | | rhyolite, olivine, augite and plagioclase andesite. in basalt and plagioclase in Pegmatites When the...Pegmatites usually contain quartz, alkali feldspar, plagioclase feldspar and muscovite. In nepheline syenite...Amphibolite is mostly hornblende with a variable plagioclase content. Marble is composed of recrystallized...pyroxene. Metallic minerals may include magnetite, hematite, pyrite, chalcopyrite, bornite and pyrrhotite...solution gives rise to rocks known as ironstones. Hematite and magnetite are the most prominent minerals |  | | Book | | museum quality but many minerals can be found on mine dumps or can be purchased or traded. After introducing... These rocks are poor in quartz but rich in plagioclase feldspar. Darker and even poorer in silica than...diorite is gabbro, containing a calcium-rich plagioclase and pyroxene as the dark mineral. Peridotite...species as in quartz on calcite and rutile on hematite. Some faces attract overgrowth more than others...colouring of alternate faces of quartz by red hematite. -40- Old overgrowths may themselves be overgrown |  | | Journal (issue) | | Articles Famous mineral localities: the Taewha mine, K orea...........................................COVER: WULFENITE with mimetitefrom the San Francisco mine near Magdalena, Sonora, Mexico. The large crystal...Himalaya mine, Mesa Grande, California Tourmaline Queen mine, Pala, California Pala Chief mine, Pala, California...Ledge mine, Washington, California Benitoite Gem mine, San Benito Co., California U.S. Borax mine, Boron...Peacock mine, Virgin Valley, Nevada Hale-Norcross mine, Virginia City, Nevada Copper Queen mine, Bisbee |  | | Journal (article/letter/editorial) | | mineralization at Flatschach (Eastern Alps), Austria Johann G. Raith 1 & Thomas Leitner 3 & Werner H...mineralization in the historic Flatschach mining district (Styria, Austria) occurs in a NE–SW to NNE–WSW oriented...Leoben, Leoben, Austria 2 Pezoltgasse 46, A-5020 Salzburg, Austria 3 Salinen Austria AG, Bad Aussee...Aussee, Austria chalcopyrite with pyrite or arsenopyrite. Sericite-carbonate alteration is developed around...is a strongly oxidized assemblage that includes hematite, cuprite, and various secondary Cu- and Fe-hydroxides |
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