 | | Journal (article/letter/editorial) | | xiii. G e r m a n y (Deutschland) Belnhausen, Darmstadt, ankerite, 138. Eifel, Rhineland, barian sanidine...Thuringia, pyrolusite pseudomorphous after manganite, 274. Ilmenau, Thuringia, pyrolusite, 976. Kaiserstuhl...gersdorffite (III), 940. Luisa, Giessen, Hesse, pyrolusite pseudomorphous after manganite, 274. Orlberg...INDEX Ecton, Staffordshire, serpierite, 882. Mells quarry, Frome, Somerset, calcite, 70. Roughten Gill, Cumberland...localities, p. 1078: Castle an Dinas quarry; Cripple's Ease quarry; Great Zawn, Zennor; Knill's Steeple |  | | Journal (article/letter/editorial) | | actino]ite, anthophyllite, hastingsite, hornblende. Amphibolite, Singhbhum, India, trace elements in, 671. Anandite...Animas, Atocha, Bolivia, stannite, 1045. Ankerite, Germany, thermal decomposition of, 138. An]~ole, Uganda... Rosia (Siena), Italy, 1037. Belnhausen, Darmstadt, Germany, ankerite, 138. Benallt mine, Caernarvon~hire...An axinite-epidote- tourmaline vein cutting amphibolite, western Connemara, Eire, 747. Benson, Rhodesia...Antrim, ferrian chlorospinel, 948. Castle an Dinas quarry, Cornwall, tourmaline, 1078. Catron City, New Mexico |  | | Journal (article/letter/editorial) | | and marbles, which were metamorphosed under amphibolite- to granulite-facies conditions (Searle & Malpas...low pressure (<0.4 GPa), and range from lower-amphibolite facies to greenschist-facies conditions (Gnos...phase at the granulite facies and partly at the amphibolite-facies conditions of retrograde metamorphism...temperature the reaction: pyrophyllite + braunite + pyrolusite from manganian andalusite + quartz + H2O would...muscovite aggregates must have formed below the amphibolite facies (e.g., Spear 1993). Kanonaite formed at |  | | Book | | gypsum, halite, calcite. Found in : Lower Saxony/Germany; Czechoslovakia; Yugoslavia; Surrey/England; Colorado/USA;...by: ordinary coal. Found in: Thuringia, Saxony/Germany; Czechoslovakia; Seine/France, Tula/ USSR. Similar...: Lower Saxony, Baden, eastern Harz mountains/Germany; Galicia/Poland; Urals/USSR; Alsace-Lorraine/France;...Hattor[, Philippsthal, Hesse/Germany KMgCl3 · 6 H2O Q) Robling, Halle/Germany 1: ½ 3◄ Streak white...Found in: Lower Saxony, Hesse, near the towns of Magdeburg, Halle, Erfurt/Germany; Galicia and Catalonia/Spain: | | | Book | | gypsum, halite, calcite. Found in: Lower Saxony/Germany; Czechoslovakia; Yugoslavia; Surrey/England; 6*...by: ordinary coal. Found in: Thuringia, Saxony/Germany; Czechoslovakia; Seine/France, Tula/ USSR. Similar...in: Lower Saxony, Baden, eastern Harz mountains/Germany; Galicia/Poland; Urals/USSR; Alsace-Lorraine/France;...colorless © Hattorf, Philippsthal, Hesse/Germany © Robling, Halle/Germany \:Vi Streak white. Mohs’ hardness...Found in: Lower Saxony, Hesse, near the towns of Magdeburg, Halle, Erfurt/Germany; Galicia and Cataloma/Spain; | | | Book | | gypsum, halite, calcite. Found in: Lower Saxony/Germany; Czechoslovakia; Yugoslavia ; Surrey/England; Colorado/USA;...by: ordinary coal. Found in: Thuringia, Saxony/Germany; Czechoslovakia; Seine/France, Tula/ USSR. Similar...in: Lower Saxony, Baden, eastern Harz mountains/Germany; Galicia/Poland ; Urals/USSR; Alsace-Lorraine/France;...Hattorf, Philippsthal, Hesse/Germany KMgCl3 • 6 H2O Q) Robling, Halle/Germany 1:½ 3◄ Streak white...sylvite, boracite, polyhalite Found in: Lower Saxony, Hesse, near the towns of Magdeburg, Halle, ErfurtiGermany; | | | Book | | gypsum, halite, calcite. Found in: Lower Saxony/Germany; Czechoslovakia; Yugoslavia; Surrey/England ; Colorado/USA...by: ordinary coal. Found in: Thuringia, Saxony/Germany; Czechoslovakia; Seine/France, Tula/ USSR. Similar...in: Lower Saxony, Baden, eastern Harz mountains/Germany; Galicia/Poland; Urals/USSR; Alsacc-Lorraine/ f-rance;...H2O Q) Hattorf, Philippsthal , Hesse/Germany ~ Robling, Halle/Germany l :½ white and colorless 3 ◄...Found in: Lower Saxony, Hesse, near the towns ofMagdeburg, Halle, Erfurt/Germany; Galicia and Catalonia/Spain; |  | | Catalog/List | | Rich silvery with black native ARSENIC (Schlema Germany) 1x1 £4 090 GALKHAITE (Cs Tl) (Hg Cu Zn) As Sb...rock with minor Chrysocolla. (Clara Mine. Wolfach Germany) £3.50 338 NATIVE TELLURIUM clearly visible silvery...needed) (Schlackental, Nr Oberschulenberg Harz Mts ,Germany) 2cm £4.50 131 CHRYSOCOLLA Cu Al Silicate attractive...Quartz with micro spots of Native Copper. (Kingston Quarry,Cornwall) 1x1 £2 - 553 TETRAHEDERITE (Cu ?e) ;'L...white cleavages with cerussite and or Pyrolusite (Merehead Quarry, Mendips,Somerset) 54 x 54 £2 269 MENDIPITE |  | Santos, Felipe Holanda dos, Amaral, Wagner da Silva, Konhauser, Kurt, Martins, Douglas Teixeira, Castro, Marco Paulo de, Queiroga, Glaucia Nascimento, Chi Fru, Ernest, Andersen, Morten B. (2021) Unraveling sedimentary precursors and metal enrichment of high-grade metamorphosed manganese-rich rocks from the Borborema Province, northeastern Brazil. Ore Geology Reviews, 137. 104283pp. doi:10.1016/j.oregeorev.2021.104283 | Journal (article/letter/editorial) | | Manganese ore Sedimentary protolith Anoxic sediments Amphibolite facies conditions The Paleoproterozoic Lagoa...The oxidized manganese ore consists mainly of pyrolusite, manganese-oxyhydroxide and spessartine. The...suggests peak metamorphic conditions reached amphibolite facies conditions (6–7 kbars and 550–700 ◦ C)...ganese oxides cryptomelane (K[Mn4+, Mn2+]8O16) and pyrolusite (Mn4+O2) (Dasgupta, 1997; Johnson et al., 2016)...layers is recorded by massive crystallization with pyrolusite, manganite (Mn3+O[OH]), cryptomelane, and todorokite |  | | Journal (article/letter/editorial) | | hydrobasaluminite, basaluminite, 931 Merebead quarry, Somerset, mendipite, chloroxiphite, 9o i St. Austell...Drummore, paratacamite, 547 Barra, Outer Hebrides, amphibolite assemblage of andesine, tschermakitic hornblende...intergrown with clausthalite and wittichenite, 13I Germany (Deutschland) Clara mine, Black Forest, cuprotungstite...Valle Vigezzo, Prov. Novara, vigezzite, 459 Osa quarry, Rome, gismondine, 84 I Sasso della Mantesca and...blueschist-facies amphiboles, 74i; deerite, 25i Berry quarry, Poland, Maine, arrojadite (dickinsonite), 232 |  | | Journal (article/letter/editorial) | | mica, 819 Alunite, Mexico, 54I Amapa, Brazil, pyrolusite pseudomorphous after BABU (S. K.), Chlorapatite...CHAMPNESS (P. E.), The transformation manganite --~ pyrolusite, 245 CHANG (L. L. Y.) and BRICE (W. R.), The...Cummingtonite, Tanzania, anal., 58; Ireland, in amphibolite, anal., opt., 649; India, with hornblende, anal...Eirongwab, Egypt, pyrolusite, todorokite, nsutite, 235 Elba, Egypt, manganese ores (pyrolusite, psilomelane...calcite, baryte, 235 Elgerberg, Thuringia, Germany, pyrolusite pseudomorphous after manganite, 245 ELLIOTT |  | | Journal (article/letter/editorial) | | Jurassic rocks, metamorphosed from greenschist to amphibolite. That includes the Lower marble series, the Kessariani...mostly of bacteriomophic Mn-Fe hydroxides and pyrolusite (Figures 2–5). location of the studied Fe-Mn-mineralization...fossilized bacteria and/or removed mold spheroidals on pyrolusite crystals (pyr) is remarkable (5f; see Table 2)...2). removed mold spheroidals on pyrolusite crystals (pyr) is remarkable (f; see Table 2). Table 2. Representative...X-ray diffractometer (Bruker AXS GmbH., Karlsruhe, Germany), CuKα radiation at 40 kV, 40 nA, 0.020 degrees/s |  | | Journal (article/letter/editorial) | | B8 B9 B 10 B 11 Amphibolite, Entebbe, Mengo Amphibolite, Jinja, Busoga Amphibolite, Krtnungu, Kigezi...Kigezi Amphibolite, Wrtbusane, Mengo Amphibolite, Bulole, Kigezi Dolerite, Lwamajwa, Masakka Dolerite, Nkulungu...concentration of this element recorded however was in the pyrolusite associated with the hypogene veins of the Singo...locality (w.m.) Ml Pyrolusite, Karroo Beds, Buku, Entebbe, Mengo M 2 Pyrolusite, Kaiso Beds, Kibuku...Kibuku, Toro M3 Pyrolusite, Karagwe-Ankolean Beds, Kigezi M4 Psilomelane, Mwiraaando (tin) Mine, Ankole M5 |  | | Journal (article/letter/editorial) | | Universit~itBonn Poppelsdorfer Schlog, D-5300 Bonn/Germany Abstract. Mn3+-bearing piemontites and orthozoisites...district/India 51.9 I5.3 32.8 Bilgrami (1956) Darmstadt/Germany 70.3 5.0 24.7 Abraham and Schreyer (1975)...braunite, wollastonite, quartz, and probably also pyrolusite could be expected, because the high-pressure... Pm piemontite (theoretical end member), Pyr pyrolusite, Q quartz, Vir viridine, Wo wollastonite, Zo...: 1 mixture (by weight) of CaCO3 (A.R., Merck/Darmstadt No. 2066) and high purity quartz (Minas Gerais/Brazil) |  | | Book (edition) | | environment it was found in, whether in a limestone quarry, an ore vein, a stream bed, and so on. Only...limonite. Chief ore of manganese............... MnO: pyrolusite 9b. Very light mineral, sp. gr. 2.3; feels greasy;...hardness 1—6.5; fibrous or prismatic............. pyrolusite 33e. Greasy feel; extremely soft (see 29a).....light); moss opal shows moss-like forms inside pyrolusite. Opal is often fluorescent. Found (see) 746)...*melanterite (green) muscovite psilomelane pyrolusite hemimorphite (white) smithsonite miarolitic |  | | Book | | the Willyama Complex are gneiss, schist, and amphibolite, with pegmatites and others occuring to a lesser...(including chiastolite), kyanite, and garnet. Amphibolite is a black to dark green rock comprising essentially...garnet crystals rimmed by biotite), together with amphibolite (a black rock composed essentially of amphibole...These manganese oxide minerals are admixtures of pyrolusite, wad, bra unite, psilomelane and coronadite....quality limestone from a number of quarries. The quarry adjacent. to the road is the largest in the Torrowangee |  | | Book | | immensely popular handbook of minerals appeared in Germany I obtained a copy fo! my personal library and was...piece, however, will be described to you as amphibolite, a totally strange, weird name to you. The green...in diameter, of calcite, aragonite, lirnonite, pyrolusite, or other minerals. Tabular minerals (gypsum...roses'). Dendrites are moss-like limonite or pyrolusite found along minute flaws in rocks, and are mistaken...fibrous sphalerite from Diepenlinchen, near Aachen, Germany. PLATE Vo I~ .·• / ~1 rhyolite 37 r . |  | | Journal (article/letter/editorial) | | quartz-tourmaline schist. Granite gneiss with intercalated amphibolite and epidote granite, locally constituted of banded...kyanite-almandine-muscovite subfaciesof the almandine-amphibolite facies. Accordingto Turner and Verhoogen(32)...regional metamorphismcorrespondingto almandine-amphibolite facies, is between550ø and 750ø C at a pressurebetween4...jacobsite,hausmannite,vredenburgitc, manganite, pyrolusite, cryptomelene, coronadite, hematite and goethite...the colloidallow-temperatureores, manganite, pyrolusite,cryptomelane,coronaditeand goethitewere identified; |  | | Journal (article/letter/editorial) | | azurite, olivenite, 428; coronadite, 343 Embleton quarry, Cockermouth: alunite, dickite, thaumasite, zunyite...scheelite, 921 Meldon aplite quarry, Okehampton: bavenite, 577 Meldon limestone quarry, Okehampton: scheelite...nah' Achlaise, Ledmore: cromaltite, 767 Lettermore quarry, Loch Loyal: nordmarkite, 389 Loch Bad ham Ban...molybdenite in amphibolite, pegmatites, sphene, 344 Scourie: dolerite, garnet-plagioclase amphibolite, hornblende-schist...contact, xlvii; vaterite, 535; calcite, 609 Belshaw's quarry, White Mountain: laumontite, 516 Bengore Head: |  | | Report (issue) | | from Johannes Menge who was appointed Mine and Quarry Agent to the South Australian Company in 1836....red crystals with dark green amphibole in a small quarry on the Pinkawillinie road, 24 km west of Kimba;...Ranges—almandine occurs as small crystals in amphibolite 8 km northwest of ‘‘Moolawatana”’; we in the...crystals in triplite at the Wiperaminga Hill West quarry, east-southeast of ‘‘Kalabity’’. Yorke Peninsula—pink...transparent yellow crystals at the Iron Monarch quarry. Fleurieu Peninsula—nodules of alunite have been |  | | Report (issue) | | ............................................ Pyrolusite ...............................................Fe203 FeTi03 MnTi03 3Mn203·MnSi03 50 50 Rutile Pyrolusite Cassiterite Ti02 Mn02 Sn02 51 52 55 Anatase...(1.5 m) brecciated zone in an abandoned dolomite quarry 1.5 miles (2.4 km) southeast of Graysville. In...1. Small galena cubes were found in a limestone quarry located where U.S. Highway 27 crosses Big Dry Creek...segregations in Siloam Granite exposed in an aggregate quarry one mile (1.6 km) east of Siloam, 0.5 mile (0.8 |  | | Journal (article/letter/editorial) | | 1955). Conway, Redstone granite quarry (includes Redstone Green granite quarry located 800 feet WNW), 1 mile...(Gillson 1927). Conway, White Mountain granite quarry, W side of Saco River on W side of Birch Hill,...Harbor, mountain composed of granite, syenites, amphibolite, and quartz diorite: acmite, hastingsite (crystals)...(microcrystals), phenakite (microcrystals), pyrite, pyrolusite, quartz, samarskite(?), tourmaline(?), vesuvianite(...Figure 12. Fluorapatite, 2.5 mm high, Chickering quarry, Walpole, Cheshire County. Bob Janules specimen |  | | Journal (article/letter/editorial) | | assemblage in the Mn–Si–O system. Minerals: Pr—pyrolusite, Bx—bixbyite, Hu—haus2 mannite, Mn—manganosite...system comprises the following pure minerals: pyrolusite (Pr) MnO2, bixbyite (Bx) Mn2O3, hausmannite (Hu)...reactions (1) 7 pyrolusite + quartz = braunite + 2 O2 at the highest f O2 and (2) 4 pyrolusite = 2 bixbyite...determine which of two mineral assemblages is stable: pyrolusite + braunite or bixbyite + quartz. If only the...found in metamorphosed Mn-bearing sediments. The pyrolusite + braunite assemblage is widespread at the Shivariapur |  | | Journal (article/letter/editorial) | | at PH2o= 3-5 kbar corresponding to the lower amphibolite facies. The contact metamorphic episode M3, late...(Dasgupta et al., 1974; Abraham and Schreyer, 1975). Pyrolusite, a phase expected to occur with andalusite very...slightly less than that found in the crystals from Darmstadt by Abraham and Schreyer (1975). On the other hand...amounts of Fe and Ti but higher Mg than those from Darmstadt, and are clearly in the phlogopite field. Hematite...relatively more depleted in Ti than those from Darmstadt despite being otherwise similar. Discussion The |  | | Report (volume) | | ......................................... 197 Germany....................................................... 7. Sketch showing concentric layers of pyrolusite and psilomelane.... 8. Map showing the principal...Cuba, smaller amounts being obtained from Russia, Germany, Great Britain, Belgium, Japan, the East Indies...manganese ores are oxides, mainly psilomelane and pyrolusite. Other oxides of manganese are mined, but much...them are important as ores, namely, psilomelane, pyrolusite, braunite, manganite, and wad. Psilomelane. Psilomelane |
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