Aug 07, 2013· Iron oxidecoppergold or IOCG deposits can be of tremendous size. The largest known deposit of this type is Olympic Dam, located 560 kilometres north of Adelaide, South Australia. Olympic Dam is Australia's largest underground mine. In 2012, plans to expand the mine into an enormous open pit were put on hold.

This is an ore from a zone of Copper Porphyry which was located in southeastern New Brunswick. The overall grade of the ore was assayed at .35% copper and 600ppb AU or gold. This deposit is actually a project which myself and another prospector have been looking at over the last year.

Construction of a flotation plant to treat oxide coppergold ore and sulphide coppergold ore is underway. When fullscale operation is achieved late in 1996 the plant will treat million tonnes of ore per year of which million tonnes will be open cut ore and million tonnes will be block cave ore.

The concentration of copper in ores averages only %, and most commercial ores are sulfides, especially chalcopyrite (CuFeS 2), bornite (Cu 5 FeS 4) and, to a lesser extent, covellite (CuS) and chalcocite (Cu 2 S). These minerals are concentrated from crushed ores to the level of 10–15% copper by froth flotation or bioleaching.

Jun 24, 2006· Best Answer: there are different tempuratures to melt gold and copper,for instance gold is a softer metal and it will melt before the the temp for melting gold is 1000 degrees,and copper is 1200 degrees,the gold will melt first. You must heat the gold containing copper ore until it .

May 28, 2014· Ore Minerals. Copper in these deposits generally occurs in copperiron sulfide minerals such as chalcopyrite (CuFeS 2) and bornite (Cu 5 FeS 4). Brassyyellow Chalcopyrite is the primary copperbearing mineral in Porphyry deposits. It can be most easily distinguished from pyrite by its more colourful tarnish.

The Operation comprises an openpit mine feeding ore to a conventionally milling and flotation operation which produces a copper and precious metals concentrate for export to custom smelters mainly in Asia. The concentrate contains approximately 23 per cent copper, 6 grams per tonne (g/t) gold and up to .

Coppercontaining rock, or copper ore, holds only a small percentage of copper. Most of the rock is unwanted material, typically referred to as gangue. There are two main types of copper ore of interest: copper oxide ores and copper sulfide ores. Both ore types can be economically mined,...

The Timok deposit is part of the Timok coppergold project located on the eastern side of Serbia, approximately 5km from the Bor mining complex and 250km southeast of Belgrade. The deposit is categorised into two zones namely Čukaru Peki (Upper Zone) .

Moreover, with the exception of Spain and Chili, the United States has no serious rivals in copper production, Montana and Michigan, producing the greater part of the famous Calumet and Hecla mine, in Michigan, is now down 4,000 feet and still yields copper ore. The most copper ores are not difficult to distinguish.

A longterm price chart of the two reveals two things: First, gold and copper tend to move in the same direction a majority of the time. Second, it shows that the copper market tends to be more volatile and sensitive to price swings than gold. It makes sense that copper reacts to fundamental trends more quickly than gold.

Gold ore, when discovered in nature, is usually found combined with stones and other metals, such as silver and lead. This natural state does not display gold's aesthetic virtues, nor does it easily permit workers in gold to fashion jewelry. Gold refiners use several different methods to remove ...

Copper ore is produced in 13 states. In 1989, Arizona produced 60 percent of the total U. S. ore. Fourteen domestic mines accounted for more than 95 percent of the megagrams (Mg) ( millon tons) of ore produced in 1991. Copper is produced in the U. S. primarily by pyrometallurgical smelting methods.

Extracting copper from its ores. The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite ((CuFeS_2)) are converted to copper by a different method from silicate, carbonate or sulfate ores. Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the commonest ores of copper.

In cyanidation, metallic gold is oxidised and dissolved in an alkaline cyanide solution. When gold dissolution is complete, the goldbearing solution is separated from the solids. With ores of higher gold content (greater than 20 grams of gold per tonne of ore), cyanidation is accomplished by vat leaching,...

Contango ORE in the News Company Strategy and Focus Contango ORE, Inc. (CORE) has a strategy of exploring for gold, copper, silver, and other valuable minerals in Alaska, and advancing our discoveries to the point that our properties become attractive to a larger integrated mining company for acquisition or .

Gold and Copper Alloys dissolve in one another in all proportions, forming a complete series of homogeneous alloys, which are less malleable, harder, more elastic, and more fusible than gold, and possess a reddish tint. Those with less than 12 per cent, of copper are fairly malleable; when more than this is present they are more difficult to work owing to their hardness. Since no change of ...

Apr 23, 2011· Both ore types can be economically mined, however, the most common source of copper ore is the sulfide ore mineral chalcopyrite, which accounts for about 50 percent of copper production.

The Copper Pan is a tool used to gather ore (and other items) from rivers, lakes, and ponds. You receive one after the Glittering Boulder at the bridge just west (left) of the mine entrance is removed, revealing a waterfall in its place.