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Home > Gold Ores > Gold Corp > Columbus Gold Corp.


Columbus Gold Corp -

Company Homepage: Columbus Gold Corp.
Location: Vancouver, BC, Canada

The process for low-grade gold ore is relatively simple; a cyanide solution is applied to a heap (the leaching circuit) of the crushed ore, dissolving the gold, which is then collected. How high-grade gold ore powder is separated from host rock, depends on which type of ore it is, since different ore types require different processes for optimal recovery of the gold. For example: - Oxide ore goes directly to the leaching circuit, where cyanide dissolves the gold. - Refractory ore, which contains carbon, is roasted at 1000 degrees Fahrenheit, burning off the sulphide and carbon, then goes to the leaching circuit. - Sulphide refractory ore, which does not contain carbon, is oxidized in an autoclave in order to separate the sulphide safely, and in an environmentally friendly manner, from the ore, which then enters the leaching circuit. The gold is then extracted from the cyanide solution and deposited onto activated carbon, from which the gold is then chemically stripped. The gold is then melted onsite in a furnace (a smelter) and poured to create dore bars, which are about 90% pure gold. The gold dore bars are usually shipped offsite to a refinery where they undergo further processing to strip out the remaining impurities from the gold to become 99.99% pure gold.

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Columbus Gold Corp - Web


Columbus Gold Corp


Columbus Gold Corporation - Home Page - Sat Jan 9, 2010

Columbus Gold Corporation is a gold exploration and development Company ... Columbus Gold controls a 100% interest, subject to underlying royalties, in 22 gold ...

Columbus Gold Corporation - News Releases - Drilling On ...

Columbus Gold Corporation (CGT: TSXV) ("Columbus Gold" or the "Company") is ...

CGT.V: Summary for COLUMBUS GOLD CORP- Yahoo! Finance

Get detailed information on COLUMBUS GOLD CORP (CGT.V) including quote performance, Real-Time ECN, technical chart analysis, key stats, insider transactions, and the ...

COLUMBUS GOLD CORP. | CompanyMine

Full company reports: offices, news, mineral properties, financial summaries, stock quotes and management information. Search for documents on COLUMBUS GOLD CORP.



Columbus Gold Corporation


Columbus Gold Corporation - Home Page - Sat Jan 9, 2010

Columbus Gold Corporation is a gold exploration and development Company ... Columbus Gold controls a 100% interest, subject to underlying royalties, in 22 gold ...

Columbus Gold Corporation - News Releases - Drilling On ...

Columbus Gold Corporation (CGT: TSXV) ("Columbus Gold" or the "Company") is ...

Columbus Gold Corp. - CGT.V - CDNX >> MiningNerds.com

Company summary with corporate and market information for Columbus Gold Corp. (CGT.V). Featuring company news, user comments, press releases, price quotes, % change, ...

CA:CGT - Columbus Gold Corp Company Report - Money - MSN CA

Columbus Gold Corporation is a Canada-based company engaged in the acquisition, ... The Company_ s wholly owned subsidiary is Columbus Silver Corp. ...



TSX-V


CGT.V: Summary for COLUMBUS GOLD CORP- Yahoo! Finance

Get detailed information on COLUMBUS GOLD CORP (CGT.V) including quote performance, Real-Time ECN, technical chart analysis, key stats, insider transactions, and the ...

COLUMBUS GOLD CORP | Pinnacle Digest

Columbus Gold Corp (TSX-V: CGT) saw a decrease in its share value Monday as ... Columbus Gold has the option to purchase the 60 unpatented claims outright at ...

SCRAPER SPRINGS PROPERTY FARM-IN AGREEMENT ANNOUNCED

Columbus Gold Corp. has entered into an agreement with Newmont Mining Corp. of ... generation activities for Columbus Gold on an exclusive basis. ...

Piedmont Mining Company, Inc. : Customer Area

This property is controlled by Columbus Gold Corp. (TSX-V; CGT) ... its exclusive relationship with Columbus Gold Corp. to perform its Nevada ...



Golden Mile Property


Portage Minerals Amends Agreement on Golden Mile Property

TORONTO, ONTARIO -- 12/02/09 -- Portage Minerals Inc. (the Company) announces that is has amended the terms of the option agreement with Columbus Gold Corp. (US) in ...

Portage Minerals Amends Agreement on Golden Mile Property

... of the option agreement with Columbus Gold Corp. (US) in which the Company was granted ... to a 70% interest in Columbus Gold's 100% controlled Golden Mile property, located in ...

Yukon-Nevada Gold Corp. updates Golden Eagle dispute

Yukon-Nevada Gold Corp. updates Golden Eagle dispute ... Columbus > Columbus Press Releases. The information on this page is provided by PR Newswire. National is not ...

News: Portage Minerals Amends Agreement on Golden Mile Property.

Dec 2 2009, 12:18 PM EST. Portage Minerals Amends Agreement on Golden Mile Property ... of the option agreement with Columbus Gold Corp. (US) in which the Company was ...



Agreement


COLUMBUS GOLD CORP. | CompanyMine

Full company reports: offices, news, mineral properties, financial summaries, stock quotes and management information. Search for documents on COLUMBUS GOLD CORP.

COLUMBUS GOLD CORP | Pinnacle Digest

Columbus Gold Corp (TSX-V: CGT) saw a decrease in its share value Monday as ... Columbus Gold has the option to purchase the 60 unpatented claims outright at ...

SCRAPER SPRINGS PROPERTY FARM-IN AGREEMENT ANNOUNCED

Columbus Gold Corp. has entered into an agreement with Newmont Mining Corp. of ... generation activities for Columbus Gold on an exclusive basis. ...

Portage Minerals Amends Agreement on Golden Mile Property

TORONTO, ONTARIO -- 12/02/09 -- Portage Minerals Inc. (the Company) announces that is has amended the terms of the option agreement with Columbus Gold Corp. (US) in ...


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Columbus Gold Corp - News


Gold Seeker Closing Report: Gold and Silver Gain Again

Gold rose as much as $8.85 to $1145.40 in early Asian trade before it fell in London and late morning trade New York trade to see a loss of $5.77 at as low as $1130.78 by around 11:15AM EST, but it then rallied back higher in the last couple hours of trade and ended near its earlier high with a gain of 0.6%. Silver rose 15 cents to $18.70 in Asia and fell to as much as 22 cents to $18.33 in ...

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