 | | Journal (issue) | | A. Wilson Selected Minerals from the Volcanic District of Laacher See, Germany.........................thanks to the auction donors for their generosity; lest readers be left wonder ing who to thank, the names...July — August, 1977 Figure 5(b). Detail of the upper left corner of figure 5(a) Figure 6. (a) Specimen...anatase and quartz in some areas of the vein. Manganese oxide forms a thin black coating on the quartz...preferentially lie on the As-rich side of the tri angle (upper part). (Pb,Tl)xAsvSz 1+ sartorite 2+ rathite 3+ |  | | Book | | demems, sullides and related compounds, halides. oxides and hyJnix1des, nitrates, c-arbonares, and borates...particularly those of the pure metals, sulfides , and oxides. Silky lustre is found in fibrous minerals as well...in: Harz mountains, Thi.\ringia/Germany; Tyrol/Austria; Alsace, region around Paris/France; Tunisia; Morocco;...natrolite, serpengra~ 1 ◄ tine. Found in : Steiermark/Austria; Lombardy/Italy; California, Nevada, Pennsyl- vania/USA;...hardness 1 Saxony, Magdeburg!Germany; Salzkammergut/Austria; Alsace/France; Caspian Sea; Turkey; Iran; Utah |  | Feng, Ya-li, Cai, Zhen-lei, Li, Hao-ran, Du, Zhu-wei, Liu, Xin-wei (2013) Fluidized roasting reduction kinetics of low-grade pyrolusite coupling with pretreatment of stone coal. International Journal of Minerals, Metallurgy, and Materials, 20 (3). 221-227 doi:10.1007/s12613-013-0716-5 | Journal (article/letter/editorial) | | coupling with pretreatment of stone coal, the manganese reduction efficiency was investigated and technical...were optimized. It is found that the optimum manganese reduction efficiency can be up to 98.97% under the...all these minerals responded well, giving ∼99% manganese reduction efficiency. Meanwhile, the reduction kinetic...fluidized beds; kinetics; stone coal 1. Introduction Manganese plays an important role in many fields, such as...More than 90% of manganese ores are used in the iron and steel industry, of which manganese dioxide ores |  | | Journal (article/letter/editorial) | | the weathering processes leading to iateritic manganese deposits. The problems encountered in their exploration...Nsuta-Manganerz (1960) (nach Angabe der African Manganese Co. Ltd.) Menge in t Mn Fc SiO2 Ai2Oa P 11...4. Ansicht des Manganerztagebaues der Sandur Manganese Iron Ore Ltd., Eastern Section. Unter dem Plateau...mittleren Durchschnitt der Bohnerzzone. Es steht aber lest, dab auch dutch Aufbereitung kein versandfiihiges...H. V. N., II, I. S. CEOLHO, and A. HOReN: The Manganese Deposits of Minas Gerais, Brazil. In: XX. Congreso |  | | Journal (article/letter/editorial) | | assigned to either the Colorado or the Whitlock district (Clark 1970). The Colorado Quartz and surrounding...ROCKS & MINERALS Mariposa County, California the district. It is not known when the word quartz was first...Quartz mine. Early in the history of the Colorado district, the larger mines were along the Colorado vein;...that placers along Saxon Creek in the Colorado district were known to be quite rich as early as 1852 (Allsop...(Allsop 1853) and that by 1855 the district was very active, boasting a post office from 2 June 1858 |  | | Book (edition) | | ntroduction Native Elements Sulfides Sulfosalts Oxides and Hydroxides Halides Carbonates xi DESCRIPTIVE...can say "vith certainty. As examples, colorful oxides were used for pigments either for painting or for...diopside, or, if available, green bet)'l (emerald); manganese, pink or red rhodonite and rhodochros,te; iron...and massive). Sulfosalts Tetrahedrite, enargite . Oxides and Hydroxides Corundum, hematite (colloform and...Potassium Calcium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Arsenic Selenium |  | | Book (edition) | | Native Elements Sulfides Sulfosalts at 278 290 Oxides and Hydroxides Halides Carbonates A A IDENTIFICATION...Potassium Calcium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Arsenic Selenium...element symbol by placing the sign and number in the upper right hand corner as in the following examples:...have several valences. For example, iron and manganese commonly occur in mineral compounds in either...is exactly the same. This explains why two iron oxides such as hematite and magnetite, both compounds | | | Book (edition) | | Introduction Native Elements Sulfides Sulfosalts Oxides and Hydroxides Halides Carbonates xiii DESCRIPTIVE...Potassium Calcium Titanium Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Arsenic Selenium...element symbol by placing the sign and number in the upper right hand corner as in the following examples:...have several valences. For example, iron and manganese commonly occur in mineral compounds in either...is exactly the same. This explains why two iron oxides such as hematite and magnetite, both compounds |  | | Book (edition) | | Microcline and Smoky I'ala, ( ialiloniia. (Upper) Quartz, Crystal Peak, Colorado. (Lower) L HOW...Classification 122 Native Elements 124 Sulfides 138 Oxides Halides 161 Carbonates Borates Phosphates 187... the interior. is limited to the study of the upper part which he can reach with his hammer. He collection...Fig. 162. 161. Aragonite, Flos Fcrri, Styria, Austria. Stalactitic Limonite, Ural Mountains, Russia...a branching shrub or troo, like the forms of manganese oxide (see Crystal Growing 63 Fig. 1G4) often |  | | Book (edition) | | imparted by transition elements, especially iron, manganese, titanium, chromium, and copper. Despite its many...rock mass; (2) a concretionary lump of manganese and iron oxides found on ocean bottoms. occurrence The...certain positions in the periodic table; iron and manganese are transition elements whose electronic structure...Colorado at the Pelican Dives mine, Silver Plume district, and at the Little Emma mine, Clear Creek County;...lode, Summit County, and in the Cripple Creek district. It is also found in Canada; Mexico; Bolivia; |  | | Book (edition) | | narrower terms. Examples are: Gallup Sandstone BT Upper Cretaceous Cretaceous SA Mesaverde Group New Mexico...corundum deposits SA diamonds Aberystwyth Grits Upper Llandoverian. Forms part of the Ystwyth Stage. N...desorption SA geochemistry Precambrian upper Precambrian upper Proterozoic Adelaidean system use Adelaidean...under minerals(1) oxides(2). UF aschynite UF eschinite UF eschynite BA niobates oxides minerals BT ...Ajmer City and district in central. BT Rajasthan Akchagylian Europe. See list E. BA upper Pliocene Pliocene |  | | Journal (volume) | | in every import¬ Prospector Miner ant mining district in the world, who keep its readers informed on...FERRO-NICKEL OXIDES, FOR USE IN PREPARING NICKEL STEEL FOR ARMOR PLATES. Nickel and Nickel Oxides. THE...Street, Boston, Swedish Iron, Spiegeleisen, Ferro-Manganese. I I P™1 F" COPPER, Copper Ores, Matte, etc...reached by lake or railway than any other mineral district of the continent. Important discoveries made every...Aluminum, Antimony, Arsenic, Bismuth, Chromium. Manganese. Chapter XV.—The Lesser Metals (continued). Mercury |  | | Book (edition) | | .........•.............................. 178 OXIDES.........................................•........front end of a, the righthand end of b, and the upper end of c are positive; the opposite ends, negative...ends of the three axes would be la, lb, le. The upper -�-�� dipyramid would cut the two horizontal axes...hemi-orthodomes depending on whether the face upon the upper end of the crystal intersects the positive or negative...types depending on whether the two faces on the upper half of the crystal intersect the positive or negative |  | | Book | | 265 274 Vermiculite 145 Magnesite & magnesia Manganese minerals 255 Titanium & zirconium minerals ...in this book. More than 90% of manganese goes into steel, but manganese also has dozens of nonmetallic...major producing districts, or a representative district if there are many. We name the chief mining companies...graphite supply must come not merely from one district but from a single mine. Thus the physical properties...compressed, molded, or cast products. balt, and manganese occur in all asbestos minerals, due part- ly |  | | Book (edition) | | to immerse turquoises in liquids, even in water, lest the bluish green colour be oxidized to the is ...incomparably more brilliant than that given by the upper surface. is The index of air is taken as unity;...advisable to examine a stone in more than one direction lest colours and the first happens to be one of single...less porous, should not be immersed in liquids, lest the appearance of the stone be irre- test trievably...must be noted that although Retgers's forehand A lest the piece of platinum, ; salt is stones absolutely |  | | Book | | might be all aluminium compounds, or the aluminium oxides and hydroxides, or the anthraquinones. Second,...lepidocrocite (Yabuki and Shima, 1979). Iron group; Iron oxides and hydroxides group; Goethite; Lepidocrocite Mackay...75530. Red Synonym, variant or common name Iron oxides and hydroxides group; Colorado; Spanish brown Carrillo...(1986) gives this as a variety of red earth. Iron oxides and hydroxides group Palomino (1715–24); Veliz...aluminium sulfate and barium chloride. Aluminium oxides and hydroxides group; Aluminium hydroxide; Barium |  | | Book (edition) | | ARIZONA • Wu!fenite. Red Cloud mine, Si/district, Trigo Mountains, La Paz County, Arizona. Smithsonian...Hydrothermal Deposits 63 The Bisbee District, Cochise County 64 The Tombstone District, Cochise County 70 The Mammoth-St...augmented; a discussion of the classical Tombstone district has been inserted between those of Bisbee and...identification. A good example is seen in the studies of manganese oxide deposits. Several workers, among them Hewett...regulatory function diminished until the mining district remains largely as an anachronism. But the habit |  | | Journal (issue) | | 4 cm Coronel Murta, Brazil Rudolf Watzl Freistadt, Austria Visit our website and see us at Mineral-Shows... Sofia Gabelli photo. tamination by iron or manganese, preserving the transparency of the crystals....spectroscopic analyses have revealed the presence of manganese in the gray to black calcite specimens (up to...to 1500 ppm). Trace impurities of manganese oxides coloring crystal surface growths have been identified...calcite crystals, evidence for the presence of manganese in the geode formation. Amber-yellow to reddish |  | | Book (edition) | | 2. Porphyry Copper-Related Deposits The Bisbee District The Mammoth-St. Anthony Mine, Tiger Lee Le 2A...identification. A good example is seen in the studies of manganese oxide deposits. Several workers, among them Hewett...regulatory function diminished until the mining district remains largely as an anachronism. But the habit...prospects, and even geology in terms of the old mining district names. Because so many of the locality references...substantially all as by-products of copper mining. Lest the mineral collector mourn the loss of incalculable |  | | Book | | Exeter • GEOLOGICAI~SUCCESSION IN THE EXETER DISTRICT Quaternary (Drift} Mark ground and workt'd grnund...of all the geological forn1ations in lhe Exeter district, based on 1:10 000 scale mapping. Used in conjunction...interest in the countryside. The 1nainly rural district is centred on the cathedral city of Exeter, and...sedimentary rocks in the district, folded cherts and sha\es with dolerite sills, of Upper Devonian and Lower...Carboniferous age. Folded shales and sandstones of Upper Carboniferous age give rise to hilly ground mainly |  | | Book | | often have distinctive characters. fracturing, manganese minerals. Earthy Deformability Minerals can be...property. It is thought that the presence of manganese, which is proxying in the crystal — some lattice...but it Element Percentage Oxygen 49.52 Manganese .08 Silicon 25.75 Sulfur .048 am pinholes...you may closed by crystal faces. Mountains of upper the New York State. Crystals of minerals that...the main igrock, called aplite neous bod v. The upper surface or smooth; instead, it of a batholith | | | Book (edition) | | 2. Porphyry Copper-Related Deposits The Bisbee District Tl1e Mammoth-St. Anthony Mine, Tiger 17 17 21...identification. A good example is seen in the studies of manganese oxide deposits. Several workers, among them Hewett...regulatory function din1inished until the mining district remains largely as an anachronism. But the habit...prospects, and even geology in terms of the old mining district names. Because so many of the locality references...substantially all as by-products of copper mining. Lest the mineral collector mourn the loss of incalculable | | | Book (edition) | | OF ARIZONA Wulfenite. Red Cloud mine, Silver district, Trigo Mountains, La Paz County, Arizona. Smithsonian...Hydrothermal Deposits The Bisbee District, Cochise County 64 70 The Tombstone District, Cochise County The Mammoth-St...augmented; a discussion of the classical Tombstone district has been inserted between those of Bisbee and...identification. A good example is seen in the studies of manganese oxide deposits. Several workers, among them Hewett...regulatory function diminished until the mining district remains largely as an anachronism. But the habit |  | | Journal (issue) | | analysis is revea ling sec rets within the sma l lest fossi ls. A high l ight of th e convention was the...near White Haven. This locat ion is w ithin th e upper reaches of the L ehigh River Gorge, one of the most...common. 11 Inclusions: Sometimes iron and manganese oxides, especially along the twin plane of a penetration |  | | Journal (article/letter/editorial) | | BuoHA~_~, On the composition of oceanic and littoral manganese nodules. Trans. Roy. Soc. Edinb. ]6, II, No. 17...84b. J. MurrAY and R. I~vI~E, On the manganese oxides and manganese nodules in marine deposits. Trans....besehr~inkteren AnzaM yon kristallinen Sehiefern lest. Yon sedlment/iren Oesteinen seien Orauwaeken, dmakle...Zustande einen ziemlieh ziihen Kalksch]amm dar, der lest in der LotrShre halter and an der Luft zu einem...PHILIppi stellte hinsichtlich der ~>Gaul3<(-Proben lest, ~>daBdie Kalkschlamme aus Tiefen fiber 5000 m konstant |
|
