 | | Book | | Frontcover Upper left: The observatory at Kremsmunster. Austria. which houses the mineral collection. Upper right:...mineralogical cabinet of the convent at Kremsmunster, Austria. The . specimens a~e displayed m baroque furniture...important mineralogical museums in Western Europe Austria Belgium Denmark Finland France Germany (Federal...half are in Germanspeaking countries (Germany, Austria, Switzerland). The reasons for this are partly...universities, 14 by town or city councils, 13 by district councils or regional boards, and 16 form part |  | | 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 |  | | Report (issue) | | c = 2.870 Z=4 X-ray Powder Pattern: Sagamore mine, Minnesota, USA. 4.17 (10), 2.798 (6), 2.675 (6)...66 9.10 10.24 Total [99.70] 100.00 (1) Mahnomen mine, Minnesota, USA; after correction for quartz 2.39%...(Arizona, USA). Association: Manganite, hematite, goethite, lepidocrocite, quartz, calcite. Distribution: In...No. Two and One Half mine, Talcville, New York. In Arizona, in the Campbell mine, Bisbee, Cochise Co.;...; the Magma mine, Superior, and at Malpais Hill, Pinal Co.; the North Star and King of Arizona mines |  | | 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...needles or fibres radiate from a common center (hematite or reniform limonite, Pls. 13, p. 73, and 21 ...occasionally workable veins of cassiterite with hematite (Mexico); many other minerals too form as sublimates... and deposited later. Some of the sedimentary hematite and pyrite deposits are formed in this manner: |  | | Book (edition) | | hand specimens. Left: Internal reflections of hematite (red), azurite (blue), and malachite (green)....matrix is pyrrhotite. Left (bottom): Polysynthetic hematite twinning under XPL, red internal reflections are...different internal reflections. Left: Zonal growth of hematite. Dehydration Cracks Various colloform minerals...secondary minerals. Left: Coffinite (darker grey) with hematite (lighter grey) in dehydration cracks. 7 Light...stable, leading to an exsolution process (e.g., hematite, rutile, and ulvöspinel separating from ilmenite) |  | | 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 |  | | Journal (article/letter/editorial) | | aluminum substitution on the iron -factor in hematite has been evaluated from the appropriate data on... 34S-factor of pyrite and the  18O-factor of hematite have been determined: 103 ln pyrite ⫽ 共1.5997...3 x2 ⫹ 共3.8254 ⫾ 0.5682兲 ⫻ 10 ⫺ 5x3, 10 3 ln hematite ⫽ 共5.7215 ⫾ 0.3891兲 x ⫺ 共0.029 41 ⫾ 0.004 49兲...34S-factor for pyrite and the  18O-factor for hematite. 2. BACKGROUND 2.1. The Relation Between the... 1947; Bigeleisen and Mayer, 1947; Singh and Wolfsberg, 1975): ln  ⫽ ⫺ 冉 F* ⫺ F F* ⫺ F ⫹ kT kT 冊 |  | | Journal (article/letter/editorial) | | aggregates. specimens of hydrous ferric oxide lepidocrocite are sufficiently different to permit The thermal...semi-quantitative estimation oxides (limonite) is rence of lepidocrocite in most aggregates of natural hydrous ferric...the group have included turgite, goethite, lepidocrocite, hydrogoethite, limonite, xanthosiderite, hydrohematite...other investigators. Only goethite (HFeO) and lepidocrocite FeO(OH) have been ac_ cepted as minerals of...of individual specimens labelled goethite or lepidocrocite have been published by Grim and Rowland (1942) |  | | Journal (issue) | | Articles Famous mineral localities: Bleiberg, Carinthia, Austria ...........................................C. M. Garland Arsenopyrite from the Kilpatrick mine, Madoc, Ontario...................................mushistonite; and an unnamed tin mineral from the Etta mine ..............................................383...WULFENITE group, 6 cm, from the Stefanie mine at Bleiberg, Carinthia, Austria. Photo by Werner Lieber. For a detailed...thought, I decided to depict a specimen of Red Cloud mine wulfenite (drawn rather loosely from Bob Lane’s |  | | 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...mineral magnetite; to a lesser extent by pyrrhotite, hematite and wolframite. A large number of minerals are...Caucasus - crystals up to 1.5 cm (USSR), Getchell Mine - Nevada (USA) •Application: ore (extraction of |  | | Journal (issue) | | worldwide localities, notably: Australia; Carinthia, Austria; Brazil; Cameroon; Canada: Newfoundland,...in 1963 I have had an interest in the Terlingua district mercury minerals but because many of them selfdestruct...microscopic crystals. Most of them come from the Mariposa mine which was the original town site for Terlingua....moved several miles eastward to be near the Chisos mine after the Marfa Mariposa mining company shut down...but there is even less remaining at the Mariposa mine except an open pit and some underground workings |  | | Journal (article/letter/editorial) | | oxide minerals for Fe: goethite (α -FeOOH), lepidocrocite (γ -FeOOH) and ferrihydrite (Fe2 O3 ·nH2 O)...Schwertmann, 2003). All of ferrihydrite, goethite and lepidocrocite exhibit strong peaks in intensity at wavenumbers...incompatibility with the Fe oxide minerals illustrated (lepidocrocite, yellow; ferrihydrite, orange; goethite, red)...g. Bigeleisen and Mayer, 1947; Bigeleisen and Wolfsberg, 1958; O’Neil, 1986; Schauble, 2004). As a general...reactions. J. Chem. Phys. 15, 261. Bigeleisen, J., Wolfsberg, M., 1958. Theoretical and experimental aspects |  | | | | gadolinite 85 gahnite 24 galaxite 24 heliodor 93, 93 hematite 25, 25, 27 hemimorphite 86, 87 hercynite 24 hessonite...laumontite 119 lazurite 114, 117 leadhillite 59 lepidocrocite 37 lepidolite 104, 104 nesquehonite 50 nickel...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 | | 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...mineral magnetite; to a lesser extent by pyrrhotite, hematite and wolframite. A large number of minerals are |  | | Book | | hauynite 114,116 hedenbergite 96 heljodor 93, 93 hematite 25, 25, 27 bemimorphite 86, 87 hercynite 24 hessonite...laumontite 119 lazurite 114, 117 leadhillite 59 lepidocrocite 37 lepidolite 104, 104 leudte 76, 109, 11 l...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 |  | | Journal (article/letter/editorial) | | pohwatp@si.edu Siderite Siete Suyos Mine, Atocha-Quechisla District Sud Chichas Province, Potosí Department...1. Gemmy siderite from Siete Suyos mine, Atocha-Quechisla district, Sud Chichas Province, Potosí Department...minerals known to pseudomorph siderite include hematite, magnetite, quartz, cacoxenite, calcite, barite...minerals of siderite include sphalerite, galena, hematite, calcite, ankerite, dolomite, fluorapatite, pyrite...& MINERALS Figure 2. Siderite with quartz, from Mine Hill, Roxbury, Litchfield County, Connecticut. The | | | Book | | haiiyhite 114, 1/6 hedenbergite 96 heliodor 93, 93 hematite 25, 25, 27 hemimorphite 86, 87 hercynite 24 hessonite...laumontite 119 lazurite 114, 117 leadhillite 59 lepidocrocite 37 lepidolite 104, 104 nesquehonite 50 nickel...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 (edition) | | The oxide hydroxides 14 Goethite a-FeOOH 14 Lepidocrocite c-FeOOH 18 Akaganite b-FeOOH and schwertmannite...H2O 27 Fe(OH)2 27 Green rusts 28 The Oxides 29 Hematite a-Fe2O3 29 e-Fe2O3 31 Magnetite Fe3O4 32 Maghemite...Cation substitution 39 General 39 Goethite and lepidocrocite 42 Al substitution 42 The Iron Oxides: Structure...1 3.3.2 3.4 3.5 Other substituting cations 47 Hematite 51 Al substitution 51 Other cations 54 Magnetite...additives 73 Lepidocrocite 74 Akaganite and schwertmannite 75 Ferrihydrite 78 Hematite 81 Magnetite |  | | Report (issue) | | Copperside mine, Goodsprings, Nevada ............................................ New Mayberry mine, Utah...Treasure mine, Ophir Hill area, Utah ................................... Lark vein, Bingham district, Utah...32 A case study of porosity at the Shingle Canyon mine, New Mexico 33 Sulfide estimates by ordinary porosity...Pewabic mine, Hanover, New Mexico ................................................ Grant County mine, New...Bullfrog mine, Vanadium, New Mexico .............................................. Anita mine, New Mexico |  | | Journal (article/letter/editorial) | | mineral assemblages are quartz, chalcopyrite, hematite, fluorite, and chlorite. Five stages of mineralized...quartz-chalcopyrite stockwork and breccia veins (stage-2), hematite-bearing quartz veins (stage-3), quartz infilling...fluid inclusion laboratory of Leoben University, Austria, was used to quantitatively determine the composition...(d), respectively; (e) Stage-3 mineralization as hematite-bearing quartz veins which are crosscutting the...Fl = fluorite, Gth = goethite, Hem = hematite, Lpc = lepidocrocite, Mlc = malachite, Qz = quartz. Mineral |  | | Book | | places of extreme differentiation (e.g., at the Frood Mine and at Insizwa) bismuth and tellurium minerals are...(1940). 12 T H E ORE MINERALS FIG. 4 80 X Mouat Mine, Stillwater Valley, Montana RAMDOHR From a border...arrangement of apatite. Larger quantities of specular hematite are in all probability due mostly to hydrothermal...grey). The white fringes around magnetite are hematite. The texture is of rather random orientation ...-f ilmenite hematite + magnetite magnetite -\contact-silicates magnetite + hematite graphite graphite |  | Ohkawa, M., Yamashita, Y., Inoue, M., Kitagawa, R., Takeno, S. (2000) Hematite in pyrophyllite ore deposits, Shobara district, southwestern Japan. Mineralogy and Petrology, 70 (1) 15-23 doi:10.1007/s007100070010 | Journal (article/letter/editorial) | | Petrology (2000) 70: 15±23 Hematite in pyrophyllite ore deposits, Shobara district, southwestern Japan M....revised version accepted November 11, 1999 Summary Hematite is a characteristic mineral of Liesegang rock...rock in the pyrophyllite ore deposits, Shobara district, southwestern Japan. The mineral intimately coexists...with ®ne-grained pyrophyllite and quartz. The hematite crystals are characteristically needle-shaped...within the rings. Microprobe analyses reveal that hematite crystals are almost pure iron oxide, with less |  | | Journal (article/letter/editorial) | | and lepidocrocite to hematite: assessment of possible precursors to Martian crystalline hematite Timothy...Abstract We examine the possibility that crystalline hematite (-Fe2O3) deposits on Mars were derived from the...oxyhydroxide minerals akaganéite (-FeOOH) or lepidocrocite (-FeOOH) and compare them to an earlier study...visible/near infrared spectra of hematite are dependent upon the hematite precursor mineral and the temperature...crystalline hematite deposits. Akaganéite and lepidocrocite readily transform to hematite at temperatures |  | Mann, H., Tazaki, K., Fyfe, W.S., Beveridge, T.J., Humphrey, R. (1987) Cellular lepidocrocite precipitation and heavy-metal sorption in Euglena sp. (unicellular alga): Implications for biomineralization. Chemical Geology, 63 (1) 39-43 doi:10.1016/0009-2541(87)90072-6 | Journal (article/letter/editorial) | | - Printed in The Netherlands 39 CELLULAR LEPIDOCROCITE PRECIPITATION AND HEAVYMETAL SORPTION IN Euglenasp...intracellular and cell wall microcrystalline lepidocrocite I?-FeO (OH)] has been identified in an alga...algal communities thrive in mine tailings waters of the Elliot Lake district, where pH ~<2 and aqueous...hydrosphere to sediments. We report here the mineral lepidocrocite previously unrecognized in protocista kingdom... I n t r o d u c t i o n T h e Elliot L a k e district is l o c a t e d in O n t a r i o , C a n a d |  | | Journal (article/letter/editorial) | | deferrification, while the Georgia kaolins are coated with a hematite- or goethitelike phase, which is not removed by...examined. Key Words--Goethite, Hematite, Iron, Kaolin, Lepidocrocite. INTRODUCTION Previous ESR studies...heat treatment on all similar kaolins. In samples Mine 15 and Avant no change in resonance F~ was observed...not collapse completely. In contrast, for samples Mine 24 and Blackpool, the effect of heating at 200~...ESR spectra (recorded at room temperature) of: a) Mine 24 kaolin heated at 400~ for 1 hr; b) Blackpool |
|
