What Is a Troy Ounce?

A troy ounce is a unit of weight used in the Precious Metals Industry. The term was created by a British engineer named Joseph Troy and is a very accurate measure of weight. One troy ounce is equivalent to one pound. If you are buying bullion or other precious metals, you should always make sure it is in troy ounces.

Origins of the troy weight system

The origins of the troy weight system are uncertain. Many believe it came from Troyes, France. During the Middle Ages, Troyes was a major trading center. It was also the location of important trade fairs. Merchants from all over Europe and the world would travel to Troyes to do business. This required a standardized system for weighing commodities.

Traders in Troyes modeled their system after the Romans. Each Roman “uncia” weighed 31.1 grams. These bars were broken into twelve equal pieces.

In the early 10th century, traders in Troyes began using a standardized system for weighing bullion. A merchant measured 480 grains of barley to equal a troy ounce.

The Troy weight system became more popular in England. By the 15th century, there were several different systems of weights used throughout Europe. Trade in Europe flourished in the 1300s. English traders took their goods to Troyes, and exchanged them with locals.

The use of Troy weights made doing business easier. English traders believed that they had a name for the unit, and thought they had already used it. But it was not until the early 1500s that the troy weight became the official system of measure for gold and silver in England.

Precious metals industry uses troy ounces

The precious metals industry uses the troy ounce as one of its basic units of measure. It’s important to understand what this measurement means and how it works. If you’re planning to buy precious metals, understanding these measurements will help you navigate the market.

A Troy ounce is a weight unit used for measuring the weight of gold and other precious metals. It has origins in the Middle Ages, where it was adopted as a unit of measurement by the French city of Troyes.

During the Middle Ages, Troyes was a center for international trading. Traders traveled from all over Europe to trade in the city. As the economic importance of European merchants increased, they needed a standardized weighing system.

In Troyes, merchants developed a system of weighing and distributing precious metals. This system is still in use today. Various countries have adopted the Troyes weight system.

There are various theories about the origin of the Troy ounce. Some say it was derived from Roman times. Others claim it’s based on the Roman monetary system. However, no clear answer has been found.

Converting a troy ounce into a troy pound

The troy ounce is a unit of measurement used to determine the weight of precious metals. Although the ounce is not used much today, it helped shape the monetary system of the world in the Middle Ages.

The troy ounce is based on the Roman monetary system and the Romans actually used bronze bars varying in weight as currency. In the 10th century, these bars weighed about 31.1 grams each.

There is also an American version of the troy ounce, which has been standardized since the late 1800s. Currently, the troy ounce is in wide use in the United States, although it is not in widespread use in other countries.

Troy ounces are a special type of measurement used to measure the weight of silver, gold and other precious metals. These ounces are about 10% heavier than conventional ounces. However, the troy ounce is not the best way to weigh things.

The smallest troy ounce is a tad bit smaller than the Scottish pound. This means that a standard pound is a little over 16 ounces.

Buying bullion in troy ounces is a good way to ensure it is in troy ounces

If you are investing in precious metals, then you may have heard of the troy ounce. This is a unit of measurement used to weigh precious metals such as gold and silver.

The troy ounce is a standard measurement for most precious metals. It was adopted by the United States in 1828, but the use of this weight is centuries old.

In addition to being a standard measurement, the troy ounce has also been used for weighing other commodities. For example, the Troy ounce has been used to measure the volume of sugar. However, it is not common for people to use it for cooking or drinking.

Buying bullion in troy ounces is a great way to ensure that the product you purchase is actually in the ounce you expect it to be. As a rule, most reputable online precious metals dealers will use this weight to measure their products.

Some people mistakenly believe that the troy ounce is only used for measuring precious metals. Although this is true, the troy ounce has many other uses, including the measurement of wheat grains.

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Platinum Group Metals

Platinum group metals are six noble metallic elements that are found in the d-block of the periodic table. They are also called transition metals. These metals are rare and precious. Their production impacts the environment.


Osmium is a platinum group metal, occurring in nickel-bearing ores and river sands in South America, North America, and Ontario. It is also used as a catalyst in industrial processes.

In addition to being one of the hardest platinum metals, osmium is the densest known naturally occurring substance. This property makes osmium ideal for use in devices that are able to restrict wear from friction.

Although osmium is not widely used, it has several important applications. It is used in a variety of metallurgical processes, including fuel cells. Also, it is an effective catalytic agent in organic reactions.

The most common oxidation states of osmium are a +4 state and a +3 state. It is a very hard metal that is difficult to fabricate. It has the highest melting point of the platinum group metals.


Palladium is an important component in catalytic converters. The catalysts are used in the automotive industry to convert pollutants in exhaust systems into non-toxic and less harmful substances.

These converters are used in vehicles to control the emissions of carbon monoxide, nitrogen oxides, and sulfur dioxide. They also help the vehicle’s engine to operate more efficiently.

As part of the platinum group, palladium is one of the hardest and least dense metals. It has a melting point of about four and a half times that of lead. This property makes palladium an excellent oxidation catalyst.

Palladium is used in numerous manufacturing processes, and is especially beneficial in chemical processes that require hydrogen exchange. One of the most common applications of palladium is in the manufacture of fuel cells. In addition, palladium is useful in the production of dental alloys, crowns, and jewelry.


Rhodium is a platinum group metal (PGM) and was discovered by English chemist William Hyde Wollaston in 1803. It is a silver-white, hard, metallic element that is also resistant to tarnishing and corrosion. This makes it an ideal choice for use in catalytic converters.

Aside from its unique ability to reduce nitrogen oxide in the exhaust gas of gasoline engines, rhodium is widely used in headlight reflectors, as a catalyst in chemical reactions, and as a coating for optic fibers. In addition, rhodium is also a popular alloying agent for platinum.

Because of its high melting point, rhodium is an excellent choice for use in glass. The rhodium-platinum alloy is also widely used for catalysts in extremely hot chemical environments, including those involving nitric acid.

However, the demand for rhodium is relatively small. In 2010, the US Geological Survey reported that rhodium had a global demand of 77 percent. Despite this, there is only a limited supply. Therefore, prices are likely to remain high for the foreseeable future.


Ruthenium is a metal that is used for electrical contacts and alloys. It is one of the platinum group metals. Ru is a hard, white, shiny metal. Unlike its cousin, rhodium, ruthenium is a polyvalent metal that is not reactive with most chemicals. In some applications, it acts as a catalyst.

Ru is usually found in North America and South America. In some instances, it is associated with osmium. A large global reserve of ruthenium is estimated to be around 5,000 tonnes.

Ruthenium is an important element for science and technology. It is used as a catalyst in industrial processes and in some applications it acts as a plating material for electric contacts. Several applications use ruthenium in order to improve the durability of a specific product. Among these are chip resistors and wear-resistant electrical contacts. Moreover, ruthenium is also used in dye sensitized solar cells.

Impacts of pgm production on the environment

Platinum group metals (PGMs) are used in a variety of industrial applications, including nitric acid manufacturing, aircraft turbines, and automotive catalytic converters. These metals have excellent catalytic properties, which enable chemical processes to accelerate.

They also exhibit good electrical properties. PGMs are largely recycled, which reduces their environmental impact with every round. A study by the International Platinum Group Metals Association (IPA) examined the environmental effects of producing these materials.

The study covers a range of categories: primary production, mining, recycling, secondary production, power consumption, and process emissions. Data was compiled from 11 IPA members representing all parts of the pgm production chain.

Mining accounts for 69% of the global production of pgms. Although this is a relatively energy-intensive process, it results in significant amounts of valuable minerals.

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