Latest Economic geology Stories
TORONTO, March 6, 2013 /CNW/ - Mandalay Resources Corporation ("Mandalay" or the "Company") (TSX: MND) is pleased to announce that its 2012 exploration efforts have resulted in increased Mineral Reserves. Contained gold ("Au") in Mineral Reserves grew by 33%, contained silver ("Ag") by 14%, and contained antimony ("Sb") by 38%, all net of mine depletion, in year-end 2012 independent estimations at its Cerro Bayo, Chile, and Costerfield, Australia, mines. Table 1: Mandalay...
SANTIAGO, Chile, March 6, 2013 /PRNewswire/ -- Swingplane Ventures, Inc. (OTC-BB: SWVI) (the "Company" or "Swingplane") The newly appointed President of Swingplane Ventures Inc. provides detail on the Lindorfer (2012) geological interpretations on the Company's Iron Oxide -Copper-Gold (IOCG) property located approximately 850 km north of Santiago, in the III Region, Province of Copiapo, Chile (the "Property"). A recent report by Lindorfer (2012), "Geological interpretations on the...
VANCOUVER, March 5, 2013 /PRNewswire/ - Fortuna Silver Mines Inc. (NYSE: FSM) (TSX: FVI) (BVL: FVI (Frankfurt: F4S.F) is pleased to announce updated Mineral Reserve and Mineral Resource estimates as of December 2012 for the Caylloma Mine located in Arequipa, Peru and for the San Jose Mine located in Oaxaca, Mexico. Highlights of Reserve and Resource Update -- Combined Inferred Resources for Caylloma and San Jose increased to 10.9 Mt containing an estimated...
TSX Venture Symbol: GWG CUSIP: 39141Y 10 3 OTCQX: GWMGF SASKATOON, March 5, 2013 /PRNewswire/ - Great Western Minerals Group Ltd. ("GWMG" or the "Company", TSX:V - GWG) is pleased to announce the promotion of Vic Fitzmaurice to the position of Steenkampskraal Managing Director with GWMG's wholly owned subsidiary, Rare Earth Extraction Co. Limited ("Rareco") of South Africa. Mr. Fitzmaurice's responsibilities include the refurbishment of the Steenkampskraal mine site as well...
VANCOUVER, March 4, 2013 /CNW Telbec/ - Panoro Minerals Ltd. (TSXV: PML, Lima: PML, Frankfurt: PZM) ("Panoro" or the "Company") announces that, as a result of a review by the British Columbia Securities Commission, we are issuing the following press release to clarify our disclosure. The Company has re-filed its annual information form for the financial year ended December 31, 2011 (the "AIF") as a result of a review of the annual information form dated as of April 30, 2012. A...
Trading Symbols: GTP - (TSX-V) P01 - (FRANKFURT) COLTF - (OTCQX) MONTREAL, March 4, 2013 /PRNewswire/ - Colt Resources Inc. ("Colt" or the "Company") (TSXV: GTP) (FRA: P01) (OTCQX: COLTF) is pleased to announce details of updated mineral resource estimates for the Chamine and Casas Novas gold deposits and initial mineral resource estimates for the Banhos, Bracos and Ligeiro gold deposits located within the Company's 100% owned (47Km(2)) Boa Fe Experimental Mining License ("EML")....
TSX-V: MXR OTC BB: MXROF Frankfurt: M1D VANCOUVER, March 4, 2013 /PRNewswire/ - MAX Resource Corp. (TSXV: MXR); (OTCBB: MXROF); (Frankfurt: M1D) has received the preliminary report by John Fox, P.Eng., Consulting Metallurgical Engineer of Laurion Consulting Inc. on the test work carried out on samples from it's wholly-owned Majuba Hill copper/silver project in Nevada by Inspectorate Exploration & Mining Services in Richmond, B.C. A total of fourteen samples of assay...
ZUG, SWITZERLAND, March 4, 2013 /CNW/ - Katanga Mining Limited (TSX: KAT) ("Katanga" or the "Company") is pleased to announce its ore reserve and mineral resource estimates as at December 31, 2012. Key Updates: Mineral Resources -- Overall, the measured and indicated mineral resource for Kamoto Copper Company ("KCC") (in which the Company has a 75% interest) decreased by 6.0 million tonnes. o Changes in the measured mineral resource for KTO...
VANCOUVER, March 4, 2013 /PRNewswire/ - Brazil Resources Inc. (TSX-V: BRI; OTCQX: BRIZF) ( the "Company" or "Brazil Resources") is pleased to announce the results of a recently completed National Instrument 43-101 ("NI 43-101") mineral resource estimate, which was completed by Tetra Tech, Inc. ("Tetra Tech") on the Company's Cachoeira do Piria Gold Project, located in the Pará state, Brazil. The resource estimate has an effective date of March 1, 2013. Highlights include:...
TSX-V: MED VANCOUVER, March 4, 2013 /PRNewswire/ - Medgold Resources Corp. (TSX-V: MED), the European focused gold exploration company, is pleased to announce that it has been issued the highly prospective 300 square kilometer Vila de Rei gold exploration licence in central Portugal. -- Licence located in highly prospective central Portuguese region. -- High-grade rock grab samples, from trace up to 24.7 g/t Au. -- Over 40 km of...
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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