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Latest Economic geology Stories

2014-04-07 12:23:26

VANCOUVER, April 7, 2014 /PRNewswire/ - Sarama Resources Ltd. ("Sarama" or the "Company") is pleased to announce that preliminary metallurgical testing at its South Houndé Project in south-west Burkina Faso has returned excellent results, reinforcing the Company's exploration bias towards oxide and free-milling material. The combination of high gold extraction, modest reagent consumption and rapid leach kinetics demonstrate that the oxide material is amenable to heap leaching,...

2014-04-04 16:20:58

TSX: FRNYSE: AGFrankfurt: FMV VANCOUVER, April 4, 2014 /PRNewswire/ - First Majestic Silver Corp. ("First Majestic" or the "Company") (NYSE:AG; TSX:FR) is pleased to announce the appointment of Mr. Ramon Mendoza Reyes, P. Eng., as Vice President of Technical Services and as Qualified Person responsible for the Company's Mineral Reserve and Resource estimates, long-term mine planning and the coordination of all work related to the preparation of the Company's NI 43-101 Technical...

2014-04-03 08:23:06

TSX: KOR OTCQX: CORVF VANCOUVER, April 3, 2014 /PRNewswire/ - Corvus Gold Inc. ("Corvus" or the "Company") - (TSX: KOR, OTCQX: CORVF) announces new results from the 2014 Phase One drill campaign at the North Bullfrog Project in Nevada. Assay results include the full intercept of the previously reported hole NB-14-378 as well as two recently drilled holes (Table 1). Hole NB-14-377, in the Yellowjacket deposit, intersected the Josh Vein 150 metres down dip from the surface a...

2014-04-02 08:24:24

Trading Symbols: TSX-V:URC and TSX:UEX VANCOUVER, April 2, 2014 /CNW/ - Uracan Resources Ltd. (TSX.V:URC) ("Uracan") and UEX Corporation (TSX:UEX) ("UEX") are pleased to announce initial drilling results from the first six diamond drill holes completed on the Black Lake Project ("the Property") located along the northern margin of the prolific Athabasca Basin in northern Saskatchewan. The drilling program encountered uranium intersections of 0.131% U(3)O(8) over 0.5 metres and 0.124%...

2014-04-02 08:24:05

TSX: KOR OTCQX: CORVF VANCOUVER, April 2, 2014 /PRNewswire/ - Corvus Gold Inc. ("Corvus" or the "Company") - (TSX: KOR, OTCQX: CORVF) announces the filing of an independent NI-43-101 technical report on the new resource calculation for its 100% owned North Bullfrog Project, Nevada. This independent resource calculation incorporates new drilling conducted in 2012 and 2013 which was used to calculate a new mineralization inventory for the Yellowjacket and Sierra Blanca portions...

2014-04-02 08:22:57

Improved economics at lower commodity price assumptions to advance project financing Issued Capital: 150,526,976 LONDON, ON, April 2, 2014 /CNW/ - Fortune Minerals Limited (TSX: FT) (OTCQX: FTMDF) ("Fortune" or the "Company") (www.fortuneminerals.com) is pleased to announce the results of an updated Feasibility Study report by Micon International Limited ("Micon") for Fortune's 100% owned NICO gold-cobalt-bismuth-copper project. NICO is a planned vertically integrated project consisting of...

2014-04-01 08:22:54

515 million tonnes of inferred resources average 0.53% copper, 0.36 g/T gold Trading Symbols: TSX: SEA NYSE: SA TORONTO, April 1, 2014 /PRNewswire/ - Seabridge Gold announced today that it has filed at www.sedar.com a National Instrument 43-101 compliant technical report on the independent mineral resource estimate for the recently discovered Deep Kerr Deposit at its 100%-owned KSM Project in northwestern British Columbia, Canada. The report confirms an inferred resource...

2014-04-01 00:21:32

MELBOURNE, Australia, March 31, 2014 /CNW/ - Newcrest Mining Limited (Newcrest) (ASX: NCM)) today released Technical Reports on the Telfer Property in Western Australia, Australia and the Lihir Property in Papua New Guinea, prepared in accordance with the requirements of Canadian National Instrument 43-101. Release of the Reports follows the release of Newcrest's 2013 Resources and Reserves Statement for the twelve month period ended 31 December 2013, which included details of...

2014-03-31 20:20:47

ST. LOUIS, March 31, 2014 /PRNewswire/ -- Patriot Coal Corporation (OTC Pink: PATCA) today announced that it has posted its 2013 Annual Report and Financial Statements to its website under the Investors tab at www.patriotcoal.com. About Patriot CoalPatriot Coal Corporation is a producer and marketer of coal in the eastern United States, with 10 active mining complexes in Appalachia and the Illinois Basin. Patriot ships to domestic and international electricity generators,...

2014-03-29 23:02:28

Gold Prospectors Association of America: The GPAA will hold its Gold and Treasure Expo in Las Vegas, Nev. at the South Point Hotel & Casino April 26-27. Learn how to mine and pan for real gold from experienced gold prospectors at this event, which is open to the public. Las Vegas, Nevada (PRWEB) March 29, 2014 The Gold Prospectors Association of America is headed to Las Vegas to host the Gold and Treasure Expo at the South Point Hotel & Casino, 9777 Las Vegas Blvd. South, Las...


Latest Economic geology Reference Libraries

28_71c4ddf154b94f9ae30fda80d8080e32
2005-05-26 12:03:03

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...

28_2ed8636e187bcb1f5dad0d65027dc1b5
2005-05-26 11:58:03

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...

28_5f496c15049ba89cd8c43810810e311e
2005-05-26 11:32:33

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...

28_30e4ecba792d2b734beb4d32901c1f58
2005-05-26 10:41:56

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...

28_0ac371f570a8e0129ff11833b1cf20c7
2005-05-26 09:20:28

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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Word of the Day
mundungus
  • A stinking tobacco.
  • Offal; waste animal product; organic matter unfit for consumption.
This word comes from the Spanish 'mondongo,' tripe, entrails.