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Latest Economic geology Stories

2014-06-16 08:23:01

VANCOUVER, June 16, 2014 /PRNewswire/ - Nevsun Resources Ltd. (TSX:NSU / NYSE MKT:NSU) is pleased to provide an update on the 2014 regional exploration program and to announce assay results from Aderat, located 10 kilometers from the Bisha Mine ("Bisha") and processing plant. HIGHLIGHTS -- High grade intersections at Aderat include: o Hole MX-011: 1.38% Cu, 7.82% Zn, 1.12 g/t Au, 25.6 g/t Ag over 10.25 meters o Hole MX-012: 1.13% Cu, 11.15% Zn,...

2014-06-16 08:22:24

TORONTO, June 16, 2014 /CNW/ - Alacer Gold Corp. ("Alacer" or the "Company") [TSX: ASR and ASX: AQG] is pleased to announce the positive results of the Definitive Feasibility Study ("DFS") for the processing of sulfide ore through whole ore pressure oxidation ("POX") at its Çöpler Gold Mine in Erzincan Province, Turkey. The Company has completed extensive technical, design, engineering and procurement studies in preparing the DFS and will be carrying out basic engineering and further...

2014-06-16 08:22:02

TORONTO, June 16, 2014 /CNW/ - Alacer Gold Corp. ("Alacer" or the "Company") [TSX: ASR and ASX: AQG] announces updated Mineral Resources and Reserves estimates for the Çöpler Gold Mine in Turkey as a result of the initial outcomes from the ongoing resource reconciliation project. Highlights -- Measured and Indicated Mineral Resources have increased by 0.62 million ounces (+9%) to 7.80 million ounces of contained gold. -- Mineral Reserves have increased by 0.21 million...

2014-06-12 08:31:44

SHENYANG, China, June 12, 2014 /PRNewswire/ -- NF Energy Saving Corporation (NFEC) ("NF Energy" or the "Company"), a leading energy saving services and solutions provider for China's power, petrochemical, coal, metallurgy, construction, and municipal infrastructure development industries, today announced that it has recently signed a RMB22 million (or $3.38 million) contract with an environmental protection company in Beijing for a major retrofit project over the industrial coal fired...

2014-06-11 16:22:28

BRISTOL, Va., June 11, 2014 /PRNewswire/ -- Alpha Natural Resources (NYSE: ANR), a leading U.S. coal supplier, today announced that four of its affiliate operations received the Holmes Safety Award from the state of West Virginia for their safety accomplishments. Special recognition was also given to four employees for their efforts and achievements in mine safety and community work, including Gary Frampton of East Bank, W.Va., who won the state's top individual honor as 2013 Coal...

2014-06-11 08:22:25

TORONTO, June 11, 2014 /CNW/ - Anaconda Mining Inc. ("Anaconda" or "the Company") - (TSX: ANX) is pleased to report that, following a positive review of historic geological data, it has begun a 2,000-meter diamond drilling program on its Deer Cove gold project, which is located approximately 8 kilometers from its Pine Cove mill on the Ming's Bight Peninsula, Newfoundland. 2014 Exploration Program: On May 25(th), the Company began drilling at Deer Cove and expects to finish by early July,...

2014-06-10 08:22:55

Highlights: Coarse grind size of 65 mesh for gravity separation & 100 mesh for tail leaching tests TSX: KOR OTCQX: CORVF VANCOUVER, June 10, 2014 /PRNewswire/ - Corvus Gold Inc. ("Corvus" or the "Company") - (TSX: KOR, OTCQX: CORVF) announces the results of the initial follow-up gravity gold recovery testing and cyanide leaching of the gravity tail material from the main vein and stockwork core of the Yellowjacket deposit. These test samples are representative of an estimated...

2014-06-06 12:21:42

ST. LOUIS, June 6, 2014 /PRNewswire/ -- Arch Coal, Inc. (NYSE:ACI) today announced that its Thunder Basin Coal Company subsidiary earned top honors for reclamation excellence from the Wyoming Department of Environmental Quality (DEQ). http://photos.prnewswire.com/prnvar/20120727/CG47668LOGO The 2014 State of Wyoming Reclamation Award was presented to Thunder Basin's Black Thunder and Coal Creek mines. "The Black Thunder and Coal Creek personnel take pride in the amount of wildlife...

2014-06-05 12:24:40

Trading Symbol: UEX-TSX VANCOUVER, June 5, 2014 /CNW/ - UEX Corporation ("UEX") and AREVA Resources Canada Inc. ("AREVA") announce the drilling results from the 2014 exploration program at the Laurie ("Laurie") and Mirror River ("Mirror River") Projects. Laurie and Mirror River are two of eight 49.1%-owned Western Athabasca Projects joint-ventured with AREVA, the project operator (see Figure 1). The Laurie and Mirror River project areas lie along the southern margin of the...

2014-06-05 12:24:16

THUNDER BAY, ON and VALLENAR, CHILE, June 5, 2014 /PRNewswire/ - Red Metal Resources Ltd. (OTCQB:RMES), a mineral exploration company with copper-gold assets in Chile, is pleased to provide an update on mining activities being conducted by Minera Farellon, an affiliated company, on the Farellon copper-gold project. Minera Farellon has a permit to mine up to 500 tonnes per month on the Farellon project. Minera Farellon has provided Red Metal with an update on activities. Mining...


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
cruet
  • A vial or small glass bottle, especially one for holding vinegar, oil, etc.; a caster for liquids.
This word is Middle English in origin, and ultimately comes from the Old French, diminutive of 'crue,' flask.
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