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10oz Gold Bullion | 311g Gold Bar | 311gr Perth Mint with Certificate


2,000.00 €

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Perth Mint
Perth Mint

Founded in 1899 in Perth, Australia. The Perth Mint holds the world record to mint the biggest gold coin with 1012 kg. Globally loved by investors for their high quality and wide range of investment and collectors coins.

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Buy 10oz Perth Mint Gold Bar Online

The 10oz gold bar is on the biggest bar of the gold bullion investments from the Perth Mint here at CelticGold. The 10oz bar is the perfect opportunity for the investor to secure the physical ownership at the lowest premium.

The Perth Mint is Australia oldest mint, founded 1896 by Sir John Forrest mints these bars. All Perth Mint Gold bars come with a certificate and a fineness of 999/1000.

The History of Gold Bars:

The History of gold bars is even older than the history of coins. Around 5,000 years ago the first gold bars, although small were produced.

Copper, Zink, Silver, Gold and Bronze Bars were transported to far away destinations from the mines to later produce weapons, statues and tools. Especially silver and gold bars have been used to trade products in the Mediterranean area. One could say that bars have been used as pre-coinage. Only later coins were introduced to make trade easier and more fungible with smaller denominations.

Also the minted coin gave (not always, though) a guaranty about weight and purity. The purity and weight of the bars and coins used varied within 5%. Of course in modern days we have gold bars refined to 999/1000 fineness or 24 carat with exact weights in metric grams and/or ounces.

Manufacturers of Goldbars

When talking about manufacturers of gold bars one often talks about LBMA accredited. The LBMA is short for the London Bullion Market Association and since 1919 the LBMA has traded bars that have these quality criteria:


  • Serial Number
  • Assay stamp of the refiner
  • Millesimal fineness to 4 significant figures e.g. “999.5”

The first list of approves LBMS “Melters and Assayers is dated to 1934.

The worldwide most known bar manufacturers that are LBMA approved are:

Heraeus, Germany
Umicore, Germany
PAMP, Switzerland
Valcambi, Switzerland
Johnson Matthes, USA
AngloGold Ashanti, Brazil
Tanaka, Japan
The Perth Mint, Australia

How gold bars are manufactured

There are different ways of manufacturing a gold bar, the smaller up to 1 kilo in size bars we’re trading are cast bars. Gold granules or small cut pieces will be placed into a mould and weighed to the exact needed amount. The mould is then heated usually with an induction furnace which relies on electro-magnetic frequency to induce heat which melts the gold fairly quick.

Other methods may (although used in manufacturing) contaminate the gold when part of the furnace lining or rust on the tongs transferring the crucible could fall into the melted gold.

The bar after melted is then cooled, sometimes with water or in a cooling tunnel with fully automated production chains. The bar is then removed from the water tank, cleaned and weighed. If the bar doesn’t show the exact weight it will be melted again. The more modern method is to melt several bars directly in a row of moulds. This process is allows the manufacturer to produce several bars at the same time.

After the bars have been approved they will get marked usually with a hydraulic press.

Modern: Continuous casting machine production process

The more modern method is to produce bar stock of the required width and thickness on a continuous basis using a continuous casting machine. This machine consists of a graphite block (the die), through which an orifice is machined to the width and thickness of the required bar stock. This orifice is attached to the aperture of a graphite crucible in which the gold at a specified purity is melted, normally by induction heating or resistance element heating. The die is also clamped between two cooling blocks through which water is passed.

A starter bar, machined to fit the channel in the die, is inserted into the orifice as far as the crucible, while the other end is clamped into the withdrawal mechanism. When the melted gold has reached the required casting temperature, the process is started by pulling the starter bar out of the die in a series of short pulling movements.  

As the bar is drawn through the die, the gold gradually solidifies, emerging as a cast bar which is then cut to the required length (excluding the starter which is removed). Gold in the form of granules or cut pieces of large bars is added to the crucible at intervals to maintain continuous production. (Source: The Perth Mint)

Where to buy 10oz Perth Mint gold bars online?

The 10oz Perth Mint goldbar can be bought online at best price at www.CelticGold.eu

Metal Gold
Form Gold Bar
Country of Origin Australia
Manufacturer Perth Mint
Series Perth Mint
Purity 999.9/1000
Fineweight 311.00 gram
Gross Weight 311.00 gram
Condition Uncirculated
Packaging Blister with Certificate
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