 | | Journal (article/letter/editorial) | | New University of Lisbon, P-2829-516 Caparica, Portugal * Corresponding author, e-mail: crysmin@clix.pt...University of Évora, Apt. 94, P-7000 Évora, Portugal, e-mail: jmirao@uevora.pt Abstract: The results...crystal structure types: rutile-type (rutile, pyrolusite and cassiterite), fluorite-type (thorianite)...angles (°) Rutile 4.593 2.959 0.644 0.3051 Pyrolusite 4.398 2.873 0.653 0.3020 Cassiterite 4...filled 3d shell in rutile itself (TiO2) and in pyrolusite (MnO2), or contain a heavier cation with a filled |  | | Book (volume) | | Luxembourg by J. Bouladon Spain by F. Vazquez Guzman Portugal by D. Thadeu Italy by P. Zuffardi European part...Yugoslavia; and Southwest Europe embraces France, Spain, Portugal and Italy. Each volume has an introductory chapter...182 185 186 187 189 189 190 190 190 191 191 192 Portugal by D. Thadeu. History of mining Geotectonic framework...territories of France, Luxembourg, Italy, Spain and Portugal. It covers an area of l 451556km 2 with a population...Production World ranking Italy Production World Portugal Production ranking 3600 4612 5 9 400000 2 |  | | Book | | HEULANDITE, DESMINE et LAUMONTITE sur basalte. Rio Grande do Sul. Brésil. Texte : Francisco Coma Photographie:...e de K("\\'C"c naw, ~li<'higan Etau.Unis. X Portugal. ARGENT urborcsccnt s ur Calcite. Batopil;u,...de cr is ta u" de mica. Panasqucira, t-undào, Portugal. NI CK ELINE cn s1.11liste ll:11lé n, Jaén. ...cuivre. Minerai de cuivre. Almadén, Prov. de Ciudad Real, Espag ne. Au premier plan, aspect des fours et...CINABRE, crist aux sur quartzitc. ;\lmadfo. Ciudad-Real. REALGAR, cristau x en "gtode" Mine Getchcll, Humboldt |  | | Journal (issue) | | Page R0<:khunllng Situ Treasures of Madeira and Portugal Page By D. S. Freir The Shining Mountain By Tom...Madeira and Portugal by D. S. Frei, TRAS OSMONTES PONTE DE BARCA VALENC DES GONCALO • ,VILA REAL ; ( mo...mo.n9�c.J•) VISEU & BEIRA ALTA [o-re._ '11P•f "'..t,t.. ):. . COIMBRA • •· MINAS DE • PANASOUEIRA...\• • MILFONTES MONCHIQUE MINAS SE DOMINGOS PORTUGAL The entire main island is of basalt, except the...that this is all that we personally found. In Portugal we had our car, with out which even a superficial |  | | Catalog/List | | w~1teBarytes.(Clara 11 (Loch Duich Scotl5nd) 1x2 El Portugal) lxl 60p 2x2 !1.90 1x2 li.DG 2x4 ~5 2x2 t~...well distributect in green Chlorite. Portugal) 1x1 40p 1x2 70p 2x2 tl.30 33 APATITE ,CAABONATE...f~wnareas in and on crystallised quartz. (Benet Quarry,BuckfieldNaine U.S.A 1x~ tl.30 107 NATIVE COPPER...creamyradiations on Quartz Limonite. (St John's Quarry Kapunda Svuth Austral ia) i " tl. 50 hl f.5 133...ins matrix (Molinello Mine, Val Graveglia Italy) M. DO 149 GANOPHYLLITE quite rich golden browncrystalline |  | | Journal (issue) | | to maintain these so that the Journal remains a real asset to the reputation of the Society - even though...Leadhills (Heddle, 190 I) ha ve been examined and do not contain molybdenum; the 'eosite' is vanadinite...up to 7 mm long, have been fuund at Springhill quarry , Peldar Tor, Whitwick, Leicestershire. They are...veins associated with minor calcite, baryte and pyrolusite. This occurrence is unique in its association...minerals. INTRODuCTION Springhill quarry (also known as Peldar Tor quarry; SK 449 \58), at Peldar Tor, Whitwick |  | | Journal (article/letter/editorial) | | the mine produced 470 tons of manganese ore (pyrolusite) add was then worked in conjunction with the...which when in situ had packed between them soft pyrolusite, the ore sought for. There were actually two...Tephroite *Pyrrhotine Bementite Chalcopyrite Pyrolusite Malachite Rhodochrosite Pyrite Manganocalcite...blocks externally altered to a thin black crust of pyrolusite, the blocks being in the exact condition in which...coated with bro~vn and black films of ~'~.~-~ \ pyrolusite. In another beautiful variety, which is rare |  | | Catalog/List | | OH good blue micro crystals on rock (Greystones Quarry,Lezant,Cornwall) 14 X 14 £2.00 lx 14 £3.50 2 ...Quartz with micro spots of Native Copper. (Kingston Quarry,Cornwall) 1x1 £2 553 TETRAHEDERITE (Cu Fe) Sb S...pinkish faintly fibrous masses with calcite or Pyrolusite.(Merehead Mendips) » x J4 £2 286 MOTTRAMITE Pb...white cleavages with cerussite and or Pyrolusite (Merehead Quarry, Mendips,Somerset) S x « £2 219 MARICOPAITE...Zeolite group pure white fibrous vein sections (Dean Quarry, Lizard Cornwall) 1x2 £2 2x2 £4 2x3 £6 469 OFFRETITE |  | | Report (volume) | | Playa Real....................................... 391 391 391 392 Other properties near Playa Real.................... 394 Other prospects near Playa Real and Puerto Vie jo. , 394 Playa Blanca...................... Sketch map of part of workings, Playa Real... Sketch map of Playa Blanca workings............supergene and residual deposits are composed of pyrolusite, wad, and psilomelane, formed by weathering of...Rica between 1914 and 1920 was shipped from Playa Real, Puerto Viejo, and Lagarto. High tides and shallow |  | Fendorf, Scott, Jardine, Philip M., Patterson, Ronald R., Taylor, David L., Brooks, Scott C. (1999) Pyrolusite surface transformations measured in real-time during the reactive transport of Co(II)EDTA2−. Geochimica et Cosmochimica Acta, 63 (19) 3049-3057 doi:10.1016/s0016-7037(99)00232-x | Journal (article/letter/editorial) | | PII S0016-7037(99)00232-X Pyrolusite surface transformations measured in real-time during the reactive...and solid-phase species of cobalt and manganese in real-time. Co(II)EDTA2⫺ is produced while Mn(IV) is reduced...reduced to Mn(III) which forms an ␣-Mn2O3 layer on pyrolusite. This layer passivates the surface after an initial...processes may be diminished by continual exposure to pyrolusite—an advantage from an environmental quality perspective...oxidized to Co(III)EDTA⫺ during transport through pyrolusite (-MnO2)coated quartz sand columns, and Zachara |  | | Journal (issue) | | particular expert was Prof. Bill McGuire so it was a real pleasure to meet him in person and learn more about...source of the Skye Zeolites). What is the threat, how do volcanoes kill and cause damage on such a large scale...also mainly a hazard for buildings, although people do get killed. A ballistic bomb hit a Landrover during...manage/reduce the threat? There is not much we can do about the long term effects from a super eruption...day out. However there is still much to learn and do. Improving the quantification of risk assessment |  | Rumsey, M. S., Krivovichev, S. V., Siidra, O. I., Kirk, C. A., Stanley, C. J., Spratt, J. (2012) Rickturnerite, Pb7O4[Mg(OH)4](OH)Cl3, a complex new lead oxychloride mineral. Mineralogical Magazine, 76 (1) 59-73 doi:10.1180/minmag.2012.076.1.59 | Journal (article/letter/editorial) | | 3, is a new mineral from Torr Works (Merehead) quarry, near the village of Cranmore in Somerset, United...oxychloride, in cavities inside a manganite and pyrolusite pod. The crystals are typically less than 5 mm...9(6) Å3 (space group Pmm2 which is related to the real unit cell by the transformation matrix [100/020/002])...oxychloride, Merehead quarry, Somerset, mineral nomenclature, Torr Works quarry, new structure type. Introduction...exposed on a belt M. S. RUMSEY ET AL. (Merehead) quarry (51º12’N 2º25’W) (Fig. 1). Associated minerals |  | | Journal (article/letter/editorial) | | Unheated natural mixtures of manganite and secondary pyrolusite, from the same lateritic manganiferous sequence...genetic processes that led to the formation of the pyrolusite. Typical palisadic texture was observed for both...Characteristic cracks parallel to (010) of the pyrolusite structure and in particular (210) microfissures...oxide gave pure microdomains as intergrowths with pyrolusite adjacent to manganite. This is the first report...manganite-pyrolusite transformation process and an unsuspected 'r-Mn203 (Mn 30.)-pyrolusite transition |  | | Journal (issue) | | Beach, CA) Luis Teixeira-Leite (Figueira da Foz, Portugal) The Lesnicks (Wantagh, NY) Lidstrom’s (Prineville...existence to become valuable collectors’ items, and do not plan to dilute the market with reprints. (Copies...column and for those of you who have asked or urged —I do intend to keep it up, for there is no lack of material...Mont Blanc Swiss-French border region. genbach quarry specimens (see the Record, They really hit the...good as I have ever seen. The Geneva bourse is one I do recom mend to overseas visitors as a good group |  | | Catalog/List | | wbite cleavages with cerussite and or Pyrolusite (Merehead Quarry, Hendips,Somerset) ij X l El.60 1 x H...creaP.1ymasses with Doehraite or Diaspo!E. (Saga Quarry, Tveoulen ~or~ayi lxl f.l.?.O lx2 f.2.7.0 7.x2E4...111icro crystals in Cavities In Basalt. (Vitiello Quarry, near Terzigno, Vesuvlus Italy) 1 x 1/2ins f5 1/2...Zeolite group small white crystals on Matrix. (Vispi Quarry,near San Venanzo Terni Province, U!Rbria,Italy)...~roup pure ;ihi te ;'ib:::ou~vei;, :;ectio;1s (0ean Quarry, Lizard Corn~Jlll lx2 E2 2x2 E4 2x3 E6 (Ji.01;0 |  | | Catalog/List | | areas in Green Chlorite. (Hangualde Beira Alta, Portugal) lxl 40p lx2 80p 2x2 fl.50 • 223 ARSENIC NATIVE...with Muscoviteor Quartz. (Cabracao, Minho,North Portugal) lxl 60p lx2 f.1 2x2 E2.20 023 Af'HYDRITE CalciumSulphate...silvery massive with minor Chalcopyrite (Hingsten Quarry, Cornwall) lx2 El.SO 2x2 E3.00 2x3 E5.00 2 002...BARYTES pure golden brown cleavage. (Fullers earth Quarry Redhill, Surrey) lxl SOp. lx7. f.1.00 218 BAUHHAUERITE...creamywhite micro crystals in cavilies in Natrolite (Saga Quarry,TvedalenNorway) lxl EZ.60 063 BOULANGERITE Pb/5 |  | Halbach, P., Gursky, H.-J., Gursky, M.M., Schmidt-Effing, R., Maresch, W.V. (1992) Composition and formation of fossil manganese nodules in Jurassic to Cretaceous radiolarites from the Nicoya Ophiolite Complex (NW Costa Rica) Mineralium Deposita, 27 (2) doi:10.1007/bf00197101 | Journal (article/letter/editorial) | | They are characterized by braunite, hollandite, pyrolusite and quartz as well as 39-61% Mn, 0.9-1.6% Fe...thermometamorphic (braunite) and hydrothermal (hollandite, pyrolusite) events. Petrographic similarities between the...Concha{ C Punfa Sabaoo Cabo Velas 0 Mina Playa Real E Quebrada Sesteo Tam Fossil nodules, stratiform...Mina E1 Francrs, Fig. 3, and 2425 from Mina Playa Real) are associated with slightly reddish, dark-grey...(Table 1) identified by X-ray phase analysis are pyrolusite, braunite and hollandite; quartz is mainly localized |  | | Journal (issue) | | micromounts of species that never form larger crystals. No real argument here. At the end he heaps generous praise...type of specimens you can easily find yourself. I do the opposite. I want to show the people the best... Individual calcite crystals are much rarer, but do exist. These are typically white, brown or yellowish...Olson collections; Jeff Scovil photo. Pyrolusite Mn41O2 Pyrolusite typically occurs as black powdery coatings...with manganite or independently. Post-mining pyrolusite coatings on rocks, rails and timbers were often |  | | Catalog/List | | areas i Green Chlorite. (Hangualde Beira Alta, Portugal) lxl 40p lx2 80p 2x2 fl.50 3 piecc;; ;:0~ ·;;...creamywhite micro crystals in cavities in Natrolite (Saga Quarry,TvedalenNorway} lxl E2.60 062 BORNITE Cu/5 FeS/~...green mica matrix. Someok for Micros.(S2n Vito Quarry Vcsuvius Italy) lxl E?.50 lx2 E5 121 DATOLITE Ca...Si/2 0/5 (OH) 11:1ite crusts on ANKERITE Enibleton Quarry,Cockermouth, Cumbr i lx2 El.20 (collected manyyears...strau colom::edtibrC!s, quite rich in roci:. (Vil12 Real, 'i'ras os Montes, North Portuqal) lxl 709 167 Hl- |  | Miller, A.Z., Dionísio, A., Sequeira Braga, M.A., Hernández-Mariné, M., Afonso, M.J., Muralha, V.S.F., Herrera, L.K., Raabe, J., Fernandez-Cortes, A., Cuezva, S., Hermosin, B., Sanchez-Moral, S., Chaminé, H., Saiz-Jimenez, C. (2012) Biogenic Mn oxide minerals coating in a subsurface granite environment. Chemical Geology, 322. 181-191 doi:10.1016/j.chemgeo.2012.07.005 | Journal (article/letter/editorial) | | Av. Rovisco Pais 1, 1049‐001 Lisboa, Portugal Universidade do Minho, Centro de Investigação Geológica...Ordenamento e Valorização de Recursos (CIG-R), Braga, Portugal Universitat de Barcelona, Facultat de Farmacia...Instituto Superior de Engenharia do Porto (ISEP), Instituto Politécnico do Porto, Rua Dr. A. Bernardino Almeida...431, 4200-072 Porto; and Centro GeoBioTec-UA, Portugal e Vidro e Cerâmica para as Artes (VICARTE), Faculdade...Universidade Nova de Lisboa, 2829‐516 Caparica, Portugal f Instituto de Recursos Naturales y Agrobiologia |  | | Journal (article/letter/editorial) | | examine what one has eollected before leaving the quarry, and he will permit one to retain practically The...exceptiorlally fine mineralogical rrtaterial. The quarry is better collecting ground now, perhaps, than...in fine druses. In Alston there is.a limestone quarry where are to be found fairly good druses of aragonite;...Bessenthwaite Lake, do not offer much to the collector except chrysotile. The real paradise for the collector...fells, perhaps some sheep. It is to be hoped you do not get caught in a rain storm, as happened to me |  | | Catalog/List | | material for your viewing pleasure. Winter here was a real tough one, and I’m sure you have all heard about...Sure, its more work for us, but we enjoy what we do, and being old time collectors ourselves, we just... $4.00 each H BABINGTONITE: TREW Corporation Quarry, East Deerfield, Massachusetts: Triclinic small...specimens are $6.00 each. CA VANSITE: Wagholi Quarry, Poona, India: Beautiful bright blue radiating... CELESTINE, STRONTIANITE AND CALCITE: Mandata Quarry, Cumberland County, Pennsylvania. An awesome new |  | | Journal (article/letter/editorial) | | while other disulfide and diarsenide minerals fail to do so. K. A. THE BISMUTII MINERALS OF THE TRANSBAIKALIA...(85), 151-172,1918. The author conclgdes that no real distinction can be drawn between the Bo-calledmesosideritesand...and their corresponding mlneral names, S. G. G. PYROLUSITE FROM VIRGINIA. Tnoues L. \YersoN .lNn Epcra T...Acad. Sci., 8, (16), 550-560,1918. Crystals of pyrolusite occur abundantly at Powells Fort, on northeast...properties and 2 analyses show the crystals to be pyrolusite, and they may represent pseudomorphs after manganite |  | Pracejus, B., Varga, R.A., Madgwick, J.C., Frakes, L.A., Bolton, B.R. (1990) Effects of mineral composition on microbiological reductive leaching of manganese oxides. Chemical Geology, 88 (1) 143-149 doi:10.1016/0009-2541(90)90108-j | Journal (article/letter/editorial) | | mineralogy. The thermodynamically most stable mineral, pyrolusite, is unaffected by the leaching procedure during...demonstrate that only ores with a relatively low pyrolusite content, when compared with coexisting Mn-oxide...are reduced faster and more effectively than pyrolusite. I. Introduction In this paper we present results...calculated manganese mineralogy, which is close to the real composition of the samples, and the correlation...strongly dominated by pyrolusite ( ~ 30-60%; rarely up to 85% ). Less abundant than pyrolusite, but also important |  | | Book | | 5 x 6 x 3 cm Page 251: Calcite, Irai, Rio Grande do Sul, Brazil * 12.5 x 10 x 10.5 em Page 252: Gypsum...biological rather than geological do not qualify as minerals, even though they do contain fibrous crystals of...themselves in the ground when they hit but they wont do a lot of damage (unless they hit a car, which has...big for the atmosphere to slow them down, they can do tremendous damage and create a large crater. The...owes its bright yellow color to this effect, as do the rare colored crystals of diamond. The color in |
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