 | | Journal (article/letter/editorial) | | which time they were correctly identified as a copper silicate and described as a new mineral by several...finely crystalline massive aggregates. Dioptase is a copper silicate hydroxide with a formula of Cu6(Si60,...exclusively restricted in its occurrence to the oxidation zones of copper-bearing deposits in arid climates...secondary minerals include chrysocolla, malachite, azurite, mimetite, wulfenite, cerussite, hemimorphite,...County, Pennsylvania (Gordon 1922). An unusual occurrence of dioptase associated with paramelaconite, atacamite |  | | Journal (issue) | | ..................... 2 Trip Report – Malbunka Copper Mine, Areyonga, Northern Territory ..............Micromineral News: Issue 7 Trip Report – Malbunka Copper Mine, Areyonga, Northern Territory Dehne McLaughlin...had one cut in it and we found a continuation of azurite roses that we had lost in the main decline as we...technique to cut out and lower larger slabs of azurite containing rock to facilitate our museum size request...Dehne and Maureen McLaughlin, May 2013 Below: Azurite suns against hanging wall S St and clay matrix |  | | Report (issue) | | Mineral Resource Report 80 GEOLOGY AND MINERALOGY OF COPPER-URANIUM OCCURRENCES IN THE PICTURE ROCKS AND SONESTOWN... PREFACE This report documents a large number of copper and uranium occur rences within one area of the...Bendix Field Engineering Corporation's Pittsburgh District provided most of the uranium and semiquantitative...assistance in identifying plant specimens from the Old Copper open pit geobotanical anomaly. Reviews of this...of the Picture Rocks-Sonestown area History of copper and uranium prospecting in the Picture RocksSonestown |  | | Book (edition) | | SIMPLE CRYSTALLINE FORMS MINERALS *or trigonal copper trisocta- silver hedron trisocta- gold platinum...MINERALS realgar PRISMATIC orpiment (holohedral) azurite malachite 2/m gypsum OA2.P epidote pyroxenes...crystal structures characterized by a metallic bond {copper), covalent bond (diamond) and ionic bond (fluorite)...chemical composition (e.g., pyrite by limonite, or azurite by malachite). (Sometimes pseudomorphism occurs..."scepter'-like association), barite, calcite and copper; among those of individuals of different species |  | | Book | | such as quartz and feldspar, are widespread in occurrence. Others, such as platinum and diamond, are limited...REPRESENTATIVE MINERAL AGGREGATES A X 0.75 COPPER RHODOCHROSITE Dendritic Aggregate-branching,...important emerald locality is limited to a small district near Muzo in Colombia, South America. Minerals...to understanding mineral occurrence. Examples of such groupings are copper, lead, zinc; gold and silver;...silver; silver and lead; copper and gold; tin, tungsten, and molybdenum; iron and manganese; iron and titanium; |  | | Book | | South-CentralDeposits Onganja Mine and Surrounding Copper Deposits The South The Pegmatitesin Central Namibia...and bounty of her minerals, but also for the occurrence of a large number of rare minerals, many of which...Namibia washandedoverby exporterof diamonds, uranium, copper, the Unitedof Nations for administration lead,zinc...shippedore for representativespecimens is the occurrence of mineralscontaining for thecollectionof the...miningengineerWalter Barth,becamethe headof the copper,lead, and vanadium minesin the valley of Otavi |  | Hajsadeghi, Saeid, Mirmohammadi, Mirsaleh, Asghari, Omid, Meshkani, Seyed Ahmad (2018) Geology and mineralization at the copper-rich volcanogenic massive sulfide deposit in Nohkouhi, Posht-e-Badam block, Central Iran. Ore Geology Reviews, 92. 379-396 doi:10.1016/j.oregeorev.2017.11.030 | Journal (article/letter/editorial) | | Accepted Manuscript Geology and mineralization at the copper- rich volcanogenic massive sulfide deposit in Nohkouhi...Ahmad Meshkani, Geology and mineralization at the copper- rich volcanogenic massive sulfide deposit in Nohkouhi...journal pertain. Geology and mineralization at the copper- rich volcanogenic massive sulfide deposit in Nohkouhi...of Tehran, Tehran, Iran. Abstract The Nohkouhi copper deposit (1.5 Mt @ 1% Cu) is the first reported...in agreement with a copper- rich VMS deposit model. Keywords: Nohkouhi, Copper rich, Volcanogenic massive |  | | Report (volume) | | GEOLOGY AND MINERAL .RESOURCES OF THE NIZINA DISTRICT, ALASKA BY FRED H. MOFFIT AND STEPHEN R. CAPPS...____________________. _________________ Copper ______________ :____________!__.._.____ Occurrence of the ores__________________...statement________________________ Copper sulphide deposits in greenstone and limestone___ Native copper associated with...copper______________________ ___ Origin of the copper deposits__________.___ - ______ Description of...109 ILLUSTRATIONS. Page. PLATE I. Map of the Copper and Chitiua valleys, showing location of area represented |  | | Report (issue) | | WESTERN AUSTRALIA MINERAL RESOURCES BULLETIN 13 COPPER MINERALIZATION IN WESTERN AUSTRALIA by R. J. MARSTON...never been a major producer of copper in the national context, but copper deposits are abundant and occur...Despite the unstable nature of the international copper market, exploration interest has remained high...molybdenum may accompany copper in such deposits. The author has studied the State’s copper mineralization and...second Mineral Resources Bulletin dealing with copper. The great advances made in understanding the geology |  | | Journal (article/letter/editorial) | | A "RED BEDS" TYPE COPPER OCCURRENCE, WYOMING CO., PENNSYLVANIA. ROBERT D. BUTLER. ABSTRACT. Two smallexposures..."Red Beds" type becauseof their comx Weed, W. H.: Copper deposits of the Appalachian States. U.S. Bull....slumping of soilbut a pileof copper-stained shalelies nearby. This occurrence differsfrom the otherin that...48x-487. ?Fischer,R. P.: Sedimentary depositsof copper,vanadium-uranium, and silver in southwestern United...32, pp. 9o6-95x, x937. "RED BEDS" TYPE COPPER OCCURRENCE. 627 exposedalongthe stream. The sulphidesare |  | | Report (issue) | | File SO001 Site name(s): Cape Darby Site type: Occurrence ARDFno.: SO001 Quadrangle: SOB-2 Latitude: 64...796 Location description and accuracy: This occurrence is on the east coast of Golovin Bay. It is on...and 4.1 miles northeast of Cape Darby. This is occurrence 136 of Cobb(1972,MF445; 1978, OF 78-181). Commodities:...description: A short, open-cut exploration trench exposes copper carbonates and some chalcocite disseminated in...feet area of copper staining in quartzbiotite-feldspar schist; a grab sample of the copper-stained schist |  | | Report (issue) | | name(s): Unnamed (north of Scotty Peak) Site type: Occurrence ARDF no.: MC001 Latitude: 61.8059 Quadrangle:...9725 Location description and accuracy: This occurrence is about 2 miles north of Scotty Peak. It is...the center of section 4, T. 1 S., R. 8 E. of the Copper River Meridian. This is locality 183 of MacKevett...minerals: Gangue minerals: Geologic description: This occurrence consist of a vein that is localized in a fault...5 part per million (ppm) silver and 15,000 ppm copper (MacKevett, 1976). Alteration: Age of mineralization: |  | | Journal (article/letter/editorial) | | Springer-Verlag 1975 Hydrothermally Altered and (Copper) Mineralized Porphyritic Intrusions in the Serbo-Macedonian...alteration haloes a sulfide mineralization of porphyry copper type with pyrite, chalcopyrite, galena, sphalerite...posttectonic intrusions Hydrothermally Altered and (Copper) Mineralized Porphyritic Intrusions t -, 197...published by IVANOV and ZII)ARov the Sitsi Kamen occurrence (MARATOS 1967), 1968 from SW-Bulgaria and by...differencontemporaneous with the plio-pleistocene occurrence of Ko~uh in SW-Bulgaria (PETROV 1960). i Oral |  | | Report (chapter) | | Chapter 26 Copper deposits of Myanmar KHIN ZAW1*, YE MYINT SWE2, TIN AUNG MYINT3 & J. KNIGHT1 1 CODES...account of the copper deposits and occurrences in Myanmar. Myanmar has more than 70 copper occurrences,... Myanmar commenced copper production with the development of the Sabetaung copper deposit at Monywa in...in central Myanmar. Copper matte was produced as a by-product from the Bawdwin Mine, a volcanic-hosted...exploited. Copper is associated with epigenetic vein-type and epithermal gold ± silver deposits. Copper-bearing |  | | Report (issue) | | Mesozoic Basins of the Eastern United States II. Occurrence Descriptions and Summary Tables by Gilpin R....MESOZOIC BASINS OF THE EASTERN UNITED STATES II. OCCURRENCE DESCRIPTIONS AND SUMMARY TABLES TABLE OF CONTENTS...Quadrangle, Latitude, Longitude .......... 7 Occurrence Type, Production ................... 7 Deposit...References Cited .......................... .13 VI. Occurrence Bibliography ...................... .14 VII...type* ......... Occurrences listed by type of occurrence and size . . Occurrences listed by metal association |  | | Book | | a Mineral? 12 Streak 27 Composition 13 Occurrence and Localities 29 Characteristics IS Identification...CARBONATES 44-59 Red Calcite 51 Malachite 46 Azurite 48 Blue Calcite 52 Calcite 50 Iceland Spar...Bismuth 67 Native Gold 63 Diamond 68 Native Copper 64 Graphite 69 Native Arsenic 66 Native Sulphur...crystals, specific gravity, luster, streak, and occurrence—are discussed in detail below. Quartz and Vyrite...usually produces brown, yellow, or red hues, whereas copper may turn rocks and minerals a blue or green color |  | | Book (edition) | | minerals have been added and the localities of occurrence have been updated and expanded. The special uranium...seldom present, with a resultant paucity of occurrence) tend to be in smaller crystals. Common minerals...granite as a rule, though its texture and its occurrence are similar. Like granite, diorite is a group...late low-temperature minerals. The manner of occurrence is noted in the paragraph Environment in each...detailed descriptions. Knowledge of the type of occurrence helps to eliminate minerals that might be confused |  | | Journal (article/letter/editorial) | | pyrite. Microprobe analysis confirmed that gold and copper are relatively enriched in the late pyrite. Identified...limonite, gold, carbonates, and sulfates of iron and copper. Gold in ancient times came largely from Nubia...microfissures in quartz (Osman 1989). The Hamash district is located in the Southeastern Desert of Egypt...long. 34°00'-34°15 ' and lat. 24°30'-24°45'N. The district is built up of Precambrian metasediments, metavolcanics...dikes and quartz veins. The oldest rocks in the district consist mainly of low-grade schists, mudstone |  | | Book (edition) | | seldom present, with a consequent infrequency of occurrence) tend to form smaller crystals. Common minerals...rhyolite. Several of today's low-grade Western copper pits were once rhyolite mountains. In the East...are few, with Monte Somma and Germany's Eifel District (around the Laacher See] preeminent sites. Contact-metamorphic...late low-temperature vein fillers. The usual occurrence and association is noted in the paragraph headed...species descriptions. Knowledge of the type of occurrence you visit helps to eliminate minerals that might |  | | | | Osmium Hassium i Sm 62}Eu Samarium Pu Plutonium Copper Palladium 77)Pt Iridium Silver 48 Cadmium ...elements: A piece of copper (Cu) is made up solely of tively charged electrons. copper atoms. Other minerals...brilliant blue paint made from a powder of the mineral azurite. Centuries later, the blue had turned to green...identity. As it loses water, the chemical makeup of azurite is altered slightly and the crystal structure transformed...forming disseminated deposits; much of the world’s copper is extracted from such deposits. ON THE SURFACE | | | Report (issue) | | Preliminary Model of Porphyry Copper Deposits Open-File Report 2008–1321 U.S. Department of the Interior...Geological Survey Preliminary Model of Porphyry Copper Deposits By Byron R. Berger, Robert A. Ayuso, Jeffrey...Seal, R.R., 2008, Preliminary model of porphyry copper deposits: U.S. Geological Survey Open-File Report......36 Figures 1. Cross section of a porphyry copper deposit showing idealized alteration zoning (after...compositions associated with selected porphyry copper deposits..........37 2. Major and minor axes of |  | Baggio, Sérgio Benjamin, Hartmann, Léo Afraneo, Lazarov, Marina, Massonne, Hans-Joachim, Opitz, Joachim, Theye, Thomas, Viefhaus, Tillmann (2018) Origin of native copper in the Paraná volcanic province, Brazil, integrating Cu stable isotopes in a multi-analytical approach. Mineralium Deposita, 53 (3) 417-434 doi:10.1007/s00126-017-0748-2 | Journal (article/letter/editorial) | | 1007/s00126-017-0748-2 ARTICLE Origin of native copper in the Paraná volcanic province, Brazil, integrating...Different hypotheses exist on the origin of native copper mineralization in the Paraná volcanic province...events. The average copper content in the host basalts is ~200 ppm. Native copper occurs as dendrites...Cuprite, tenorite, chrysocolla, malachite, and azurite occur in breccias at the top of the lava flows...evaluate the origin of native copper in the volcanic province. Copper contents in magnetite of the host |  | | Book (edition) | | common are malleable (e.g gold). ductile (e.g. copper). sectile (e.g. chalcocite). elastic Optical co11sta11ts...dept. (departement), dept. (departamento), dist. (district). Less common terms are not abbreviated, e.g....Grossgreiner Mt., overlooking Zillertal Valley, Tirol, Austria, and at Passo di Vizze, Trentino-Alto Adige, Italy...crystals in Obersulzbachtal Valley, Salzburg, Austria. AM 61,178, 1976. Af ghanite (Na.I<,Ca)6Ca 2 [...aggregates. Blackish gray, tarnishing brown to copper red, opaque, Juster metallic, streak grayish black |  | | Book (edition) | | have been deleted. In Chapter 7 the properties, occurrence, and uses of about described. Of the more ...noncrystalline like minerals in chemistry and occurrence. These mineral-like substances, called mineraloids...processes means that a mineral must be of natural occurrence; human beings cannot have taken part in its formation...as they may gain or lose of native silver and copper as well as those of most sulfides will tarnish...or dendritic forms of native gold, silver, or copper. Indeed, the terms used in describing them are |  | | Book (edition) | | those found in the was not made by nature alone. copper sulfate used. solution of crude rock salt, though...of Crijstah Indeed the terms used in silver, or copper. resemblan(;e to forms of their of because given...Fig. 133. Sand is of Crystals, South Dakota. copper. Anhydrite (CaS04) assumes water and changes to...cassiterite in the form of orthoclase feldspar; native copper in the form of aragonite. Even fossil wood may... 152, plates of hematite a crystal of native copper. are grouped together with such variation in their |
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