Latest Economic geology Stories
New Study Documents Benefits for Job Creation, Diverse Industries, States WASHINGTON, May 22, 2013 /PRNewswire-USNewswire/ -- Rising exports of U.S. coal to Europe and Asia added $16.6 billion to the U.S. economy in 2011, making significant contributions to America's economic recovery and job creation in many industrial sectors as well as in regions far beyond the nation's coalfields. In a report released today by the National Mining Association (NMA), the industry's national trade...
"Intersects 18.80 g/t over 13.86 metres at Santoy 8" Trading Symbols TSX - CRJ NYSE MKT - CGR SASKATOON, May 22, 2013 /PRNewswire/ - Claude Resources Inc. (TSX-CRJ; NYSE MKT-CGR) ("Claude" and or the "Company") today provided results from its recently completed 2013 first quarter drill program at the Santoy Mine Complex within the Company's 100 percent-owned, 17,200 hectare Seabee Gold Operation. Recent drilling at Santoy Gap has extended the mineralized system...
Symbol:-TSX-V:NAA OTCQX:SIOCF VANCOUVER, May 22, 2013 /PRNewswire/ - SIERRA IRON ORE CORP (the "Company") is pleased to announce that it has arranged a non-brokered private placement to qualified investors. The Private Placement financing will consist of 5,000,000 Non-Flow through units for total proceeds of $2,000,000. Each non-flow through unit will be priced at $0.40 cents, and will consist of one common share and one-half warrant. Each full warrant entitles the holder to...
DENVER, May 22, 2013 /PRNewswire/ -- Vista Gold Corp. ("Vista" or the "Company") (NYSE MKT and TSX: VGZ) today published the significant results of feasibility-level metallurgic test work supporting the comminution circuit design and estimated gold recovery rates for the Batman deposit at the Mt. Todd gold project in Northern Territory, Australia. The test work was based on HQ core samples from the Company's 2011 and 2012 drilling programs and included extensive variability testing....
VANCOUVER, May 22, 2013 /PRNewswire/ - Fortuna Silver Mines Inc. (NYSE: FSM | TSX: FVI | BVL: FVI | Frankfurt: F4S.F) is pleased to report continued success in the exploration drilling at the Trinidad North discovery at the San Jose Mine in Mexico. Drilling continues to intercept high-grade silver-gold mineralization over wide widths with the mineralization remaining open to the north and to depth. Jorge Ganoza, President & CEO, commented: "What is starting to emerge from...
TORONTO, May 22, 2013 /PRNewswire/ - Horizonte Minerals Plc, (AIM: HZM, TSX: HZM) ('Horizonte' or 'the Company') the exploration and development company focused in Brazil, is pleased to announce the completion of a comprehensive metallurgical test programme at the Company's 100% owned Araguaia Nickel Project ('Araguaia') located south of the Carajas mining district in northern Brazil. Highlights -- Metallurgical testwork is now complete and has confirmed the...
HENDERSON, Nev., May 22, 2013 /PRNewswire/ -- Trulan Resources Inc. (OTCPK:TRLR) (the "Company" or "Trulan") reports on political and economic factors in Chile that further continued investor and corporate confidence relating to the mining climate in general, and to the IGP Project in particular. Chile's well defined mineral endowment continues to attract significant capital investment primarily due to the capability of its existing infrastructure enabling products to access markets,...
-- Drill results of an additional 23 holes (MSW-0021 to MSW-0044) for a total of 43 holes in the Maturi Southwest Exploration Target Area southwest of the Maturi deposit on the Twin Metals Minnesota Project (following Duluth Metals press release dated April 16, 2013 on holes MSW-0001 to MSW-0020) -- TMM initiated this drilling program to evaluate the area for potential additional resources that may be used to...
In a Tumultuous Year for Coal in the United States, Attendance from Overseas Surged STAMFORD, Conn., May 21, 2013 /PRNewswire/ -- The 2013 International Coal Preparation Exhibition and conference, held April 28-29 in Lexington, KY, saw record international attendance -- up 17% from 2012 -- from a total of 21 countries. The increase was notable given the current state of the coal industry in the United States, particularly the Appalachia region, and coal producers' moratoriums on...
GRAND RAPIDS, Minn., May 21, 2013 /PRNewswire/ -- Magnetation LLC (Magnetation) announced today that it has successfully completed a $325 million senior secured notes offering and has entered into a $50 million senior secured credit facility. The proceeds from the notes offering will be used for capital expenditures to construct a new concentrate reclamation plant northwest of Coleraine, Minnesota and a new manufacturing plant in Reynolds, Indiana to produce high-quality iron ore...
Latest Economic geology Reference Libraries
Bornite is a sulfide mineral with chemical composition Cu5FeS4 that crystallizes in the cubic system. It has a brown to copper-red color on fresh surfaces that tarnishes to an iridescent purple surface. Its purple to bronze iridescence gives it the nickname peacock ore. Bornite is an important copper ore mineral and occurs widely in porphyry copper deposits along with more common chalcopyrite. It also is found in pegmatites. It is important for its copper content of about 63 percent by mass...
Cassiterite is a tin oxide mineral, SnO2. It is generally opaque, but is translucent in thin crystals. Its luster and multiple crystal faces produce a desirable gem. Cassiterite is the chief ore of tin today. Most sources of cassiterite today are found in alluvial or placer deposits containing the resistant weathered grains. The best source of primary cassiterite is the tin mines of Bolivia, where it is found in hydrothermal veins. Cassiterite is a widespread minor constituent of igneous...
Chalcocite, copper(I) sulfide (Cu2S), is an important copper mineral ore. It is opaque, being colored dark-gray to black with a metallic luster. It has a hardness of 2½ - 3. It is a sulfide with an orthorhombic crystal system. Chalcocite is sometimes found as a primary vein mineral in hydrothermal veins. However, most chalcocite occurs in the supergene enriched environment below the oxidation zone of copper deposits as a result of the leaching of copper from the oxidized minerals. It is...
Hematite (AE) or haematite (BE) is the mineral form of Iron (III) oxide, (Fe2O3), one of several iron oxides. The ore sometimes contains slight amounts of titanium. When shaped into ornaments, it is often called black diamond. Hematite is a very common mineral, coloured black to steel or silver-gray, brown to reddish brown, or red. It is mined as the main ore of iron. Varieties include Bloodstone, Iron Rose, Kidney Ore, Martite, Paint Ore, Specularite (Specular Hematite), Rainbow Hematite...
Magnetite is a magnetic mineral form of both iron(II) oxide and iron(III) oxide or (iron(II,III) oxide), with chemical formula Fe3O4, one of several iron oxides and a member of the spinel group. Magnetite is the most magnetic of all the minerals on Earth, and these magnetic properties led to lodestone being used as an early form of magnetic compass. Small grains of magnetite occur in almost all igneous rocks and metamorphic rocks as well as many sedimentary rocks. Magnetite is a...
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