What Is Gold Bar ( Video )

Gold is something with which we all are familiar. It is a metal, which changes life with its value. It makes business with what it is worth of and opens a completely new line of opportunities in financial sector. It indicates power, strength, and wealth. A possessor of this metal is looked upon with respect.

Moulding a metal in shape of bars is a common practice. Sometimes, it is for convenience in storage and sometimes for ease in shipment. In case of gold, it is mainly to store the metal, as gold being a precious metal, is usually not shipped in that huge quantities that is difficult to move as such. Therefore, as the name implies, a gold bar is a bar shaped piece of the metal, gold.

The gold bars, which are available are of different types, have different weights and thus different values. The procedure by which the gold bars are prepared or manufactured is the distinguishing factor in its different types. Mainly   gold  bars are manufactured using two different type of  methods , casting method or the minted method.

Casting the gold involves, at the very first, the purification of the gold and then its liquefaction. It is then poured into a mould, which is a hollow tank with a desired shaped cavity inside it. After pouring the liquid metal, the setup is left for a particular time, and is allowed to cool. The final step is to eject or break the metal, which in this case is gold, out as per the requirement.

The second major method of its formation is minting. Though mainly used for making coins, this  method  is also used for  gold . It involves cutting a gold piece in required dimensions by a piece of gold used as a tool. The markings on the gold bar are made from mechanical presses. We usually see gold bars in movies in the form of 400-ounce London goods delivery. These are quite famous and this is the very type held by many central banks. Its standard weight is 12.44 kilograms.

There is a certain mystery related to gold bars. The mystery finds its origin in China. It is not merely a story, but it indicates and highlights the importance of gold, its bars in human lives, and in their dealings related to money even in the past. It is said that seven gold bars were issued to a General named Wang, of Shenghai back in 1933.

After that, the bars became common and were to act as bank certificates as a return to money deposits. There are markings and words written on these gold bars but in a script, which is not recognised yet, thus making the use of the bars quite mysterious. However, by this mystery it became clear that gold bars in that time were used as a money exchange certificate.

Gold tola bars are common these days. This means that bars are weighed in tolas and are kept by governments all over the world in their central banks, indicating their wealth and power of their currency. Even locally, the people like investing their money in gold and purchase the bars. They like to keep them and sell these money carriers when their value maximises. This has become a profitable business.

Melting Pure Gold Sponge and Pouring a Gold Bar

Metallurgy In Mining Video

What do we know about metallurgy? Metallurgy is branch of science that deals with the procedures used when extracting metals from ores, purifying and alloying them. This also involves the study of the procedures used when making objects out of metals. Yet, to be able to understand fully all about metallurgy, it would be better to have a short glimpse of the history of metallurgy.

One of the oldest processes of applied science is the process of metallurgy. Its history would give us a good view of how the process developed and its association with metals. The history of metallurgy occurred around 7,000 BC which what they call the age of copper. It is the period between the Stone Age and the Bronze Age which could also be considered the turning point between Stone to Metal. 

The first process was purely accidental when the copper enter into the fireplace campfire hot. Obviously, the copper melted and when it cooled people noticed the change of its shape. The development of the process was also contributed by the magic of the fire. We could learn from the history of metallurgy that people in the old days relied on the fire for the metal processing 

In the 2800 BC comes the Bronze Age which is another development in metallurgy. People have become brilliant that they made an alloy of copper and tin since both was commonly found in the same ore. Which results bronze and bronze has become a commodity was used for the weapons of the armies as well as used as money for trade. 

In the 1500 BC, another breakthrough was found in metallurgy. It is the discovery of iron which was considered the most abundant metal in the earth but was difficult to extract.

By this then, in the 11th century, people pushed their luck and tried to heat the iron with charcoal in such a way that the carbon from the charcoal can be transferred to the iron.

With this, the metal would be hardened and the Age of Steel came. Yet, iron has become a continuous challenge to most metallurgists since it’s very hard which can only be hammered but can’t be melted. In the 513 BC, Chinese were able to think of a furnace strong enough to heat iron.

Metals nowadays are a commodity. From the buildings, the houses, to the littlest tools we use everyday; the magic of metals is involved. Without them, everything wouldn’t be that easy. One after another, metals have developed and evolved. Over the years, people never stopped adding bits to the history of metallurgy making way for the metals to be obviously useful and one of the most important things in our daily lives nowadays.

Video Metallurgy In Mining Old Kennecott Smelter Utah

Gold Mining In Benin West Africa

Benin is an important mining country in West Africa. It is near Africa’s second largest gold producer; Ghana.It is in the same geological setting as the leading gold producer in Africa within the West African geographical formation.

Most of the gold in Benin is dominated by artisanal gold miners from the gold-Wealthy veins near the villages of Tchantangou and Kwatena in the Atakora Mountains in the Northwest region of the country. Gold has also from alluvial gold sediments from the Perma-river and its tributaries. 

Artisanal MiningMined In Benin

Not much of commercial gold mining been done in the country, but the authorities, the mining affairs in Benin, the Office Béninoise des Mines (OBEMINES) has been working with other state administration bodies of the country’s mining law with the aim of attracting foreign investment in the gold sector to revise.

Gold Mining in Benin is not new. It goes back to the pre-colonial period, was mined as alluvial gold along the rivers for the king. Most of the gold traded in the trans-Saharan trade came from rivers in present-day Benin and Ghana. 

Throughout history, the country’s alluvial gold was mined by artisanal gold mines along the rivers and in the mountains areas. Several studies have been conducted in the past to the presence of gold in the country, but limited commercial mining was started . This leaves a Large potential of gold mines to be explored in the country.

In same geographical location with some of Africa’s gold producers such as Ghana and Mali indicates that the country has great potential as a gold producer. 

Exploration Permits Are Issued

The government has received a number exploration licenses in international gold mining companies for gold exploration in the country in recent years. Most of these companies have taken the first positive results, which suggest that the country could have far more gold resources to be explored.

Quite a significant amount of gold mineralization has been discovered in two Alibori and Atacora regions. Alluvial gold contained , were also been found in several places outside these regions, so the widespread deposits. Further research is still to be determined in the commercial viability of gold resources.

Commercial Mining in Benin

Premier African Minerals Limited is an important AIM traded, natural resources and raw materials company with gold mining interests in Benin. The company, through its subsidiary G & B African Resources Benin SARL holds exploration rights in Benin. The company has an exploration license to a 249.75km2 mineral block in the eastern part of central Benin. 

The property is located Approximately 75 km north of the town of Parakou and has a great history of artisanal gold mining. Preliminary studies on the block done shows great potential of gold mineralization, although further studies are still needed before commercial gold mining can Start. 

The location of the gold property is particularly highlighted by Proterozoic gneisses migmatic. Since the early 2000s the area intermittently artisanal mining activities for tantalum and colored gemstones such as tourmaline and was seen blue beryl (aquamarine) .

The Ministry of Mining in Benin to facilitate all artisanal mining activities of mineral exploration and other commercial gold mining lately. A preliminary survey of the company based on satellite images of the license areas has identified 39 key areas for gold, tantalite and gemstones.

These objects are grouped into three bands pegmatite, one covers a length of Approximately 10 km, a second, a length of Approximately five kilometers and the third a length of Approximately three kilometers. The latter is especially potential for colored gemstones, the other two for both gold and tantalum.

Gold-Silver Project Hasbrouck In Nevada

The Hasbrouck gold-silver project is located in the northern part of Esmeralda County, near the town of Tonopah, Nevada, USA. The project is 75% owned by West Kirkland Mining (ERM) and 25% of Clover Nevada, a wholly owned subsidiary of Waterton Precious Metals Fund II Cayman.

The project is proposed to be developed in two phases. Phase I involves the development of the Three Hills gold deposit that is to be expected a production period of two years. Phase II is the development of Hasbrouck gold-silver deposit include, are likely to have six years. 

The pre-feasibility study (PFS) for the gold and silver project in Nevada was completed in June 2015 and the final approval from the government for the construction of the Three Hills Mine from April 2016. The Perform on the approval of Phase II under environmental assessment began in May 2015, the initial cost to the Three Hills mine is expected in production, is estimated to be $ 54.3 million, while Hasbrouck is funded from the production in Three Hills mine 

Hasbrouck Gold-Silver Project Reserves And Production

From June 2015, the Three Hills mine is proven to keep estimated combined and probable reserves of 9.65 million tonnes (Mt) grading 0.018 oz Au / t containing 175,000 ounces of gold.

The Hasbrouck Mine is estimated that proven and probable reserves of combined 35.671Mt grading 0.017 oz Au / t and 0.297 oz Ag / t, with 588,000 ounces of gold and 10.56 million ounces (Moz) of silver.

The hold annual production capacity of the project is estimated at an average of 71,000 ounces of gold. The project is expected to produce 138,000 ounces of gold at the stage in Phase II I and 429,000 ounces of gold, while silver production is estimated in the phase II to 194,000 ounces per year. 

Geology And Mineralization

Includes  , the two deposits are oxidized, low sulfidation, epithermal vein systems with host rocks tuffs and sediments of Siebert formation with limited mineralization within the underlying fraction Tuff. Gold and silver mineralization is either on the surface or near the surface, above the water level, and is open at depth and to a limited extent in the Northwest and East. 

Mining And Processing Of Gold And Silver Project In Nevada 

The Three Hills deposit is proposed to be mined as a run-of-mine open pit heap leach conventional open pit, truck and- shovel to integrate operations, while the deposit Hasbrouck be mined as an open pit heap leach ore crushed. The former is to integrate a 15,000t / d heap leach pad, while the latter incorporate a 17,500t / d leach pad.

The ore from two Phase II secondary cones with a primary jaw crusher, crushed crusher, and a tertiary high-pressure grinding roll (HPGR). The comminuted product is transported in a kneading machine with cement and to the leach pad. 

The leaching gold and silver from the Hasbrouck deposit and the gold from the Three Hills deposit at their respective locations with dilute cyanide solution that pass on through carbon columns to extract a precious metals.

The loaded carbon is then in adsorption-desorption-recovery (ADR) plant that are in the Three Hills . The loaded carbon from the Hasbrouck mine will be transported by trucks to the ADR facility. 

Infrastructure For West Kirkland Mining Flagship Project

The water required for the project is proposed to either be purchased from the Tonopah Public Utilities “(TPU) wellfield in Ralston Valley via an underground pipeline or installed next to each deposit wells.
“the two deposits are oxidized, low sulfidation, epithermal vein systems tuffs with host rocks comprising the sediments and Siebert lineup. “

The current for phase I of liquefied natural gas (LNG) -based generator are supplied, while the performance for the next phase of NV Energy supplied regional power distribution company, via a transmission line. A substation is on Hasbrouck location be built and both sides are a diesel-fired generator integrated to serve as back-up.

infrastructure for phase I, a laboratory will include a reagent storage building, a process Store and a warehouse, and serve three trailers as offices, will be relocated to Hasbrouck location in the next phase.

Important infrastructure at Hasbrouck site is building inclusion include administrative offices, a warehouse, a test laboratory and accommodations.

Gold Mining in Gambia, West Africa

The Gambia is one of the well known surrounding gold producer in West Africa, Senegal, on three sides and thus shares much of Senegal's geology. This makes the country very interesting for most gold investors especially if the fact that most of its natural resources have yet to be fully exploited.

Gambia contain of multiple the natural resources, gold, tin, titanium, laterite and quartz sand. This makes the country, very important for the country,Business add mining sector a significant share of GDP country,

Mining Development in Gambia

History of Gold Mining in the US

Gold   mining  consist of a number of processes and techniques, employed to extract raw  gold  from earth. These  gold  extraction techniques include  gold  panning, metal detecting, sluicing, dredging etc.

This metal is an expensive element; thus, individuals and nations have always been interested in  gold  extraction, mainly to gain economic benefits. In the United States of America, a major rush of  gold   mining  took place with the discovery of  gold  at the Reed farm in North Carolina, in 1799. Thirty years latter, this metal was discovered at the southern Appalachians in Georgia, which was followed by the California  Gold  Rush in 1848-52 in the Sierra Nevada, as a result of which a lot of people started to settle down in California. This was only the beginning of the history of this metal discovery and mining in America. Later on, many states in America, like Alaska, Alabama, Texas, Virginia and many more, were found to be blessed with reservoirs of this metal.

The Real Gold Mine

For those of us that do want to have some level of financial security we try to save and invest our money at any opportunity. Some people do this on their own, while the majority of people have some sort of financial professional offering them advice. I personally have an account set up with a financial advisor. Most financial advisors will tell you to “diversify” your money and investments. But, do they really mean it? Yes, they mean it as long as it makes them money.

Gold Mining And Production

After the key gold mining discoveries in the United States and Australia around 1850, those two countries remained significant gold producers.

However, South Africa has larger reserves, and by 1930 was producing 53% of the world’s new gold. That was the start of the Great Depression, which slowed down economic activity around the world, beginning with the 1929 Wall Street stock market crash, the failure of the Credit Anstalt Bank of Austria in 1931 and Great Britain’s suspension of the gold standard in 1931.

President Franklin Roosevelt raised the official price of gold (in effect, inflating the value of the US dollar, which had been suffering from the deflationary effects of the Depression) from $20.67 to $35.

Gold Mineral Resources In Tajikistan

Extensive Gold & Mineral Resources in Tajikistan  is one of the mineral resource - Wealthy countries in Asia. Unlike gold discovery has collected from nearly all other mineral resources the country. In fact, Tajikistan has reported Approximately 400 mineral resource deposits. Geological studies demonstrate that the country has a significant amount of gold deposits, which are still used, suggesting that there is significant opportunity for gold investors to take advantage of this neglected resource and assist in the recovery of gold and precious metals in Tajikistan. 

Mining Tradition In Tajikistan

Principle Of Ball Mill Mining

Cone ball mill is a common ball mill mining processing. The ball mill structure of ball mill can change, and it enables the integration of the body and chassis. On the installation, it can be used only once in order to plate at the field. He also used spindle double row spherical roller bearings to replace conventional bearings. After transformation, it can power Approximately 30%, improve the fineness and increase processing capacity Approximately 15%.

Open Pit Mining Process

Opencast sometimes referred to as open cut mining, surface mining or simply open pit is extracted a mining technique that important minerals from a borrow or an open pit.

There are two types of extraction methods, commonly used in Large scale mining mineral; Open pit mining and tunnel mining or Under ground mining. Opencast mining is used when the minerals are on the surface only in the vicinity are degraded. This is especially when the soil or material covers the minerals are relatively thin and can be easily moved for mining to take place.

Shaking Table For Gold Separation Process ( Video )

Shaking table for gold separation process is the equipment used in the processing of mineral ores to separate the gold metallic minerals with other impurities. Gold dust separation process with shaking table equipment through gravity separation concentration method is in principle based on the difference of the physical properties of a mineral density. The means used in the process of separating gold of impurities by shaking table equipment utilizing media thin stream of water at the surface of the shaking table. Concentration or separation method utilizing gravity difference in the density of gold (19.3 tonnes / m3) with a density other types of minerals in the rocks (which generally range from 2.8 tonnes / m3). Because the gold mineralize material has mineral impurities or mineral carrier.

Open Pit Gold Mining Video

Blasting in open pit mine

Open-pit gold mining is the process of mining by way of excavation which was made on the surface of the soil with the aim of finding gold mineral ores and worked for the mine life. In the exposing stage and the process of mineral ore mine in open-pit gold mining, is generally carried out in the gold mining industry on a large scale which required the excavation process and move the rocks in large quantities. In the mining industry, gold obtained by isolating it from rock gold ore (extraction). According to Greenwood et al (1989), rock gold ore decent to be exploited as the gold mining industry, gold content of approximately 25 g / tonne (25 ppm).

Open-pit gold mining the have main objective of the commercial value and open mining operations undertaken with the value of the lowest possible cost in the exploitation of mineral deposits and generate maximum profit. Planning, Selection of the physical design parameters of open pit mining, scheduling program for the extraction of mineral ores is an important stage in the open-pit gold mining.

Tamarack Gold

The Tamarack Gold Property, a high grade former gold producer in the Tobacco Root Mountains of south western Montana, near the town of Sheridan, is in an advanced stage of underground exploration and development operating under the Small Mines Exclusion Act of the State of Montana.

This video depicts the Tamarack mill processing a bulk sample; a discussion on the mineralizing controls found on the property; an expedition to review its underground development and the vein structures discovered; and finally, a gold pour of a 207 gram bar (roughly 6.7 oz).

Gold In Nevada

Nevada region in the United States is a major industry in the world gold mining, and Gold In Nevada is also one of the world's largest gold resource. Nevada is a part region Southwestern of the United States and the majority of its territory consists of desert semiarid, much of it located within the Great Basin. A number of major mining companies, such as Barrick Gold Corporation , Newmont Mining, Goldcorp, operate gold mines in Nevada.

Gold Prospecting In Nevada was discovered in the 1870s at the vicinity of Carlin in Eureka County with production small, and in 1907 Placer deposits were discovered and the number is still small.  Nevada is well known for its hard rock gold mine production. However, Nevada ranks 6th among the 50 states in placer gold production, with historic gold production of roughly 1.7 million ounces.

Gold In Connecticut United States

Connecticut has a very rich history as a mining state, and Gold In Connecticut has a small amount of prospecting placer gold like many other New England states. Connecticut is the southernmost state in the region of the United States, bordered on the south by Long Island Sound, on the west by New York, on the north by Massachusetts, and on the east by Rhode Island

Just about any river or stream in the state of Connecticut does have some gold bearing gravel and refined gold from Alluvial placers,  those formed in river or stream sediments, because gold is heavier than any of the other materials that are found in the stream it will migrate down through the gravel to either a layer of clay or bedrock. Typical locations for alluvial gold placer deposits are on the inside bends of rivers and creeks so it is rather rare to find much Gold in the middle of the stream.

Gold In Alabama

State in the Alabama has produced a large amount of gold, after the discovery of gold in Georgia, the prospectors began to develop a search in the area of Alabama, and at the end of the 1830s Gold In Alabama was first discovered in the region Chilton County.  The first mining occurred at Blue and Chestnut Creeks.

From 1830 until about 1990 Alabama has produced almost 80,000 ounces of gold, And gold in Alabama has been found throughout Talladega, Tallapoosa, Chambers, Coosa, Clay, Chilton, Elmore, Cleburne, and Randolph Counties.

Test Of Copper Ore With Sulfuric Acid ( H2SO4 ) Videos

Copper extraction techniques refers to the methods for obtaining copper from its ores. The method used to extract Copper Ore depends on the nature of the mineral ore. Sulphide ores such as chalcopyrite are converted to copper by a different method from silicate, carbonate or sulphate ores.

Copper can be extracted from non-sulfide ores by a different process . Reaction of the ore (over quite a long time and on a huge scale) with a dilute acid such as dilute sulfuric acid to produce a very dilute copper sulfate solution.

Gold Mining Africa

      Africa is a major producer of gold in the world, producing up to 30% of global production in gold mining africa. Africa has historically been recognized for its exceptional gold resource potential yet remains relatively under-explored. The opportunity to acquire prospective gold resource projects in Africa, and assure security of tenure, is often lost through failure to recognize and acknowledge the interests of local stakeholders.Although gold mining industry in South Africa is one of the global leaders in gold production, it also has the highest average production costs in the world. Coupled with labour problems, lowering grades as well as several mines reaching the end of their lives, it is not anticipated that South African production will increase in the future. Although Zimbabwe has historically been a prominent gold producer in Africa, political and economic issues could cause production problems for local producers. Tanzania and Mali are rapidly becoming Africa's newest gold producers with several mines being commissioned or in final feasibility stages. Ghana is still a major gold producer in Africa. Other countries contribute steadily to Africa's gold output. Much of the recent and ongoing success in tapping these areas' mineable gold reserves is simply due to the fact that low-grade (to 1.3 grams / tonne gold) near-surface (oxidised) ores can be recovered economically. A new challenge will be to economically recover low-grade sulphide ore by open pit and/or underground methods.

Tulu Kapi Gold Mine In Ethiopia Gold Mining Project By KEFI Minerals

Tulu Kapi Gold Mine is situated 28km east of Ayra-Gulliso town in the state of Oromia, Ethiopia. Gold deposit in Tulu Kapi gold mines Ethiopia was discovered and mined on a small scale by an Italian consortium in the 1930’s. And in 2009 Nyota Minerals Limited acquired the licences Tulu Kapi gold mine and then undertook extensive exploration and drilling which culminated in December 2012.

Tulu Kapi gold mines in Ethiopia is now owned by KEFI Minerals, who bought 100% of the license held earlier by UK-based gold exploration and development company Nyota Minerals (Ethiopia) by 2014.

KEFI Minerals was formed on 24 October 2006 with a view to creating shareholder value through the discovery and exploitation of gold and copper deposits. The Company’s initial assets were EMED Mining’s exploration interests in Turkey and Bulgaria.