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Latest Economic geology Stories

ringwoodite
2014-03-13 07:33:12

April Flowers for redOrbit.com - Your Universe Online The first terrestrial sample of a water-rich gem that reveals new evidence about the existence of large volumes of water has been discovered by an international team of scientists which was led by University of Alberta's diamond scientist, Graham Pearson. Analysis of the gem, called ringwoodite, reveals that it contains a significant amount of water — 1.5 percent of its own weight. These findings, reported in a recent issue of...

2014-03-12 08:22:45

TORONTO, March 12, 2014 /CNW/ - Alacer Gold Corp. ("Alacer" or the "Corporation") [TSX: ASR and ASX: AQG] announced an update on the sulfide Definitive Feasibility Study ("DFS") and highlights positive gold reconciliation in the sulfide orebody. Mr. Rod Antal, Chief Executive Officer of Alacer, will host a conference call on Wednesday, March 12 at 5:30 p.m. (North America Eastern Daylight Time) and Thursday, March 13 at 8:30 a.m. (Australian Eastern Daylight Time) to discuss this...

2014-03-11 08:22:19

VANCOUVER, March 11, 2014 /PRNewswire/ - Sarama Resources Ltd. ("Sarama" or the "Company") is pleased to announce that it has signed a heads of agreement with Savary Gold Corp. ("Savary") to enter into a joint venture to develop Sarama's Sérakoro 1 and Savary's Houndé South properties in Burkina Faso. The joint venture will be held 35% by Sarama and 65% by Savary and Savary will be the operator. The joint venture agreement will be subject to Sarama and Savary completing...

2014-03-11 08:22:15

Trading Symbols: TSX: SEA NYSE: SA TORONTO, March 11, 2014 /PRNewswire/ - Seabridge Gold announced today that the first mineral resource estimate for the Walsh Lake deposit at its 100%-owned Courageous Lake Project in Canada's Northwest Territories is reporting 4.62 million tonnes of inferred resources grading 3.24 g/T (482,000 ounces of gold). The independent NI 43-101 compliant resource estimate was prepared by Resource Modeling Inc. ("RMI") of Stites, Idaho....

2014-03-07 20:20:28

TSX, NYSE-MKT Symbol: NCQ VANCOUVER, March 7, 2014 /PRNewswire/ - NovaCopper Inc. (NYSE-MKT, TSX: NCQ) ("NovaCopper" or the "Company") announced today that the Company has decided not to proceed with the public offering of common shares and concurrent private placement announced on February 19, 2014. The Company is deferring a decision on any financing until after public release of the updated resource estimate for the Bornite project, anticipated later this month. In the...

2014-03-06 23:02:33

BestReviewsHub.com publishes their ratings of the top retailers online who provide cash for diamonds. The professional team at BestReviewsHub.com outlines what consumers are looking for when in the market to sell their loose diamonds or diamond jewelry. (PRWEB) March 06, 2014 The consumer-based product reviews company, BestReviewsHub.com, announced the release of their best cash for diamonds online retailers. The editorial staff at BestReviewsHub.com ranks each online retailer on several...

2014-03-06 20:20:41

TSX: IMG NYSE: IAG TORONTO, March 6, 2014 /PRNewswire/ - IAMGOLD Corporation ("IAMGOLD" or the "Company") announced today that it has finalized a five-year option agreement with Sarafina N.V. (the "Agreement") under which IAMGOLD's subsidiary, Rosebel Gold Mine ("RGM") may earn a 100% interest in Sarafina's 10,000 hectare mining concession, located 25 kilometres from the Rosebel Gold Mine in Suriname. The Company may exercise its right to purchase the property at any time...

2014-03-06 08:24:42

VANCOUVER, March 6, 2014 /PRNewswire/ - Cayden Resources Inc. (TSX.V:CYD, OTCQX: CDKNF) ("Cayden" or the "Company") is pleased to announce that it has received drilling permits for the Peña de Oro target located within the companies 100% optioned El Barqueño Concessions in Jalisco State, Mexico where drilling will commence immediately. The Peña de Oro target is the most advanced of the 8 targets that Cayden plans to drill in the next 18 months. The Company considers this...

2014-03-05 12:22:10

SCOTTSDALE, Arizona, March 5, 2014 /PRNewswire/ -- S2C Global Systems, Inc. and its wholly owned subsidiary S2C Global Resources (OTC: STWG) ("the "Company") are pleased to announce that the Company has initiated an exploration program at the San Cristobal Iron Ore Mine in Michoacan, Mexico. This entire program will consist of surveying, approximately 1,000 m of trenching, followed by sampling and assaying. Crews have already been mobilized on site and the survey phase is...

2014-03-03 16:23:03

TORONTO, March 3, 2014 /PRNewswire/ - AuRico Gold Inc. (TSX: AUQ) (NYSE: AUQ), ("AuRico" or the "Company") today reported its updated Reserves and Resources, as at December 31, 2013. (Detailed Mineral Reserve and Resource tables can be found at the end of this press release) Mineral Reserves and Resources ------------------------------ Reserve Highlights As at December 31, 2013, the Company is reporting: -- Proven and Probable Mineral Gold Reserves...


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
drawcansir
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.
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