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Visualizing the Life Cycle of a Mineral Discovery

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Visualizing the Life Cycle of a Mineral Discovery

Visualizing the Life Cycle of a Mineral Discovery

Mining legend Pierre Lassonde knows a little bit about mineral exploration, discovery, and development. Drawing from decades of his experience, he created the chart above that has become a staple in the mining industry—the Lassonde Curve.

Today’s chart of the Lassonde Curve outlines the life of mining companies from exploration to production, and highlights the work and market value associated with each stage. This helps speculative investors understand the mining process, and time their investments properly.

Making Cents of Miners: The Stages of a Mineral Discovery

In the life cycle of a mineral deposit, there are seven stages that each offer specific risks and rewards. As a company proves there is a mineable deposit in the ground, more value is created for shareholders along the way.

  1. Concept

    This stage carries the most risk which accounts for its low value. In the beginning, there is little knowledge of what actually lies beneath the Earth’s surface.

    At this stage, geologists are putting to the test a theory about where metal deposits are. They will survey the land using geochemical and sampling techniques to improve the confidence of this theory. Once this is complete, they can move onto more extensive exploration.

  2. Pre-Discovery

    There is still plenty of risk, but this is where speculation hype begins. As the drill bit meets the ground, mineral exploration geologists develop their knowledge of what lies beneath the Earth’s crust to assess mineral potential.

    Mineral exploration involves retrieving a cross-section (drill core) of the crust, and then analyzing it for mineral content. A drill core containing sufficient amounts of metals can encourage further exploration, which may lead to the discovery of a mineable deposit.

  3. Discovery

    Discovery is the reward stage for early speculators. Exploration has revealed that there is a significant amount of material to be mined, and it warrants further study to prove that mining would be feasible. Most speculators exit here, as the next stage creates a new set of risks, such as profitability, construction, and financing.

  4. Feasibility

    This is an important milestone for a mineral discovery. Studies conducted during this stage may demonstrate the deposit’s potential to become a profitable mine.

    Institutional and strategic investors can then use these studies to evaluate whether they want to advance this project. Speculators often invest during this time, known as the “Orphan Period”, while uncertainty about the project lingers.

  5. Development

    Development is a rare moment, and most mineral deposits never make it to this stage. At this point, the company puts together a production plan for the mine.

    First, they must secure funding and build an operational team. If a company can secure funding for development, investors can see the potential of revenue from mining. However, risks still persist in the form of construction, budget, and timelines.

  6. Startup/Production

    Investors who have held their investment until this point can pat themselves on the back—this is a rare moment for a mineral discovery. The company is now processing ore and generating revenue.

    Investment analysts will re-rate this deposit, to help it attract more attention from institutional investors and the general public. Meanwhile, existing investors can choose to exit here or wait for potential increases in revenues and dividends.

  7. Depletion

    Nothing lasts forever, especially scarce mineral resources. Unless, there are more deposits nearby, most mines are eventually depleted. With it, so does the value of the company. Investors should be looking for an exit as operations wind down.

Case Study: The Oyu Tolgoi Copper-Gold Discovery, Mongolia

So now that you know the theoretical value cycle of a mineral discovery, how does it pan out in reality? The Oyu Tolgoi copper deposit is one recent discovery that has gone through this value cycle. It exemplifies some of these events and their effects on the share price of a company.

    1. Concept: 15+ Years

      Prospectors conducted early exploration work in the 1980s near where Oyu Tolgoi would be discovered. It was not until 1996 that Australian miner BHP conducted further exploration.

      But after 21 drill holes, the company lost interest and optioned the property to mining entrepreneur Robert Friedland and his company Ivanhoe Mines. At this point in 1999, shares in Ivanhoe were a gamble.

    2. Pre-Discovery/Discovery: ~3 years

      Ivanhoe Mines and BHP entered into an earn-in agreement, in which Ivanhoe gained ownership by completing work to explore Oyu Tolgoi. A year later, the first drill results came out of drill hole 150 with a headline result of 508 meters of 1.1 g/t Au and 0.8%. To get a sense of how large this is, imagine the height a 45-story building, of which a third of story is copper. This was just one intersection of an area that could stretch for miles.

      Wild speculation began at this stage, as steadily improving drill results proved a massive copper-gold deposit in Mongolia and drove up the share price of Ivanhoe.

    3. Feasibility/Orphan Period: ~2 years

      In 2004, the drilling results contributed to the development of the first scoping study. This study offered a preliminary understanding of the project’s economics.

      Using this study, the company needed to secure enough money to build a mine to extract the valuable ore. It was not until two years later, when Ivanhoe Mines entered into an agreement with major mining company Rio Tinto, that a production decision was finalized.

    4. Development: 7 years

      By 2006, the Oyu Tolgoi mineral deposit was in the development phase with the first shaft headframe, hoisting frame, and associated infrastructure completed. It took another two years for the shaft to reach a depth of 1,385 feet.

      Further development work delineated a resource of 1.2 billion pounds of copper, 650,000 ounces of gold, and 3 million ounces of silver. This first stage of development for Oyu Tolgoi made Mongolia the world’s fastest growing economy from 2009 to 2011.

    5. Startup/Production: Ongoing

      On January 31, 2013, the company announced it had produced the first copper-gold concentrate from Oyu Tolgoi. Six months later, the company stated that it was processing up to 70,000 tonnes of ore daily.

    6. Depletion: Into the Future

      The Oyu Tolgoi deposit will last generations, so we have yet to see how this will affect the value of the mine from an investment perspective.

      It’s also worth noting there are still other risks ahead. These risks can include labor disruptions, mining method problems, or commodity price movement. Investors will have to consider these additional conditions as they pan out.

The More You Know

Mining is one of the riskiest investments with many risks to consider at every stage.

While most mineral discoveries do not match it perfectly, the Lassonde Curve guides an investor through what to expect at each stage, and empowers them to time their investments right.

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200 Years of Global Gold Production, by Country

Global gold production has grown exponentially since the 1800s, with 86% of all above-ground gold mined in the last 200 years.

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Visualizing Global Gold Production Over 200 Years

Although the practice of gold mining has been around for thousands of years, it’s estimated that roughly 86% of all above-ground gold was extracted in the last 200 years.

With modern mining techniques making large-scale production possible, global gold production has grown exponentially since the 1800s.

The above infographic uses data from Our World in Data to visualize global gold production by country from 1820 to 2022, showing how gold mining has evolved to become increasingly global over time.

A Brief History of Gold Mining

The best-known gold rush in modern history occurred in California in 1848, when James Marshall discovered gold in Sacramento Valley. As word spread, thousands of migrants flocked to California in search of gold, and by 1855, miners had extracted around $2 billion worth of gold.

The United States, Australia, and Russia were (interchangeably) the three largest gold producers until the 1890s. Then, South Africa took the helm thanks to the massive discovery in the Witwatersrand Basin, now regarded today as one of the world’s greatest ever goldfields.

South Africa’s annual gold production peaked in 1970 at 1,002 tonnes—by far the largest amount of gold produced by any country in a year.

With the price of gold rising since the 1980s, global gold production has become increasingly widespread. By 2007, China was the world’s largest gold-producing nation, and today a significant quantity of gold is being mined in over 40 countries.

The Top Gold-Producing Countries in 2022

Around 31% of the world’s gold production in 2022 came from three countries—China, Russia, and Australia, with each producing over 300 tonnes of the precious metal.

RankCountry2022E Gold Production, tonnes% of Total
#1🇨🇳 China33011%
#2🇷🇺 Russia32010%
#3🇦🇺 Australia32010%
#4🇨🇦 Canada2207%
#5🇺🇸 United States1705%
#6🇲🇽 Mexico1204%
#7🇰🇿 Kazakhstan1204%
#8🇿🇦 South Africa1104%
#9🇵🇪 Peru1003%
#10🇺🇿 Uzbekistan1003%
#11🇬🇭 Ghana903%
#12🇮🇩 Indonesia702%
-🌍 Rest of the World1,03033%
-World Total3,100100%

North American countries Canada, the U.S., and Mexico round out the top six gold producers, collectively making up 16% of the global total. The state of Nevada alone accounted for 72% of U.S. production, hosting the world’s largest gold mining complex (including six mines) owned by Nevada Gold Mines.

Meanwhile, South Africa produced 110 tonnes of gold in 2022, down by 74% relative to its output of 430 tonnes in 2000. This long-term decline is the result of mine closures, maturing assets, and industrial conflict, according to the World Gold Council.

Interestingly, two smaller gold producers on the list, Uzbekistan and Indonesia, host the second and third-largest gold mining operations in the world, respectively.

The Outlook for Global Gold Production

As of April 25, gold prices were hovering around the $2,000 per ounce mark and nearing all-time highs. For mining companies, higher gold prices can mean more profits per ounce if costs remain unaffected.

According to the World Gold Council, mined gold production is expected to increase in 2023 and could surpass the record set in 2018 (3,300 tonnes), led by the expansion of existing projects in North America. The chances of record mine output could be higher if gold prices continue to increase.

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All the Metals We Mined in One Visualization

This infographic visualizes the 2.8 billion tonnes of metals mined in 2022.

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All the Metals We Mined in One Visualization

Metals are a big part of our daily lives, found in every building we enter and all devices we use.

Today, major industries that directly consume processed mineral materials contribute 14% of the United States economy.

The above infographic visualizes all 2.8 billion tonnes of metals mined in 2022 and highlights each metal’s largest end-use using data from the United States Geological Survey (USGS).

Iron Ore Dominance

Iron ore dominates the metals mining landscape, comprising 93% of the total mined. In 2022, 2.6 billion tonnes of iron ore were mined, containing about 1.6 billion tonnes of iron.

Metal/OreQuantity Mined in 2022 (tonnes)% of Total
Iron ore2,600,000,00093.3%
Industrial metals185,111,8356.6%
Technology and Precious Metals1,500,0080.05%
Total2,786,611,843100%

Percentages may not add up to 100 due to rounding.

Iron ores are found in various geologic environments, such as igneous, metamorphic, or sedimentary rocks, and can contain over 70% iron, with many falling in the 50-60% range.

Combined with other materials like coke and limestone, iron ore is primarily used in steel production. Today, almost all (98%) iron ore is dedicated to steelmaking.

The ore is typically mined in about 50 countries, but Australia, Brazil, China, and India are responsible for 75% of the production.

Because of its essential role in infrastructure development, iron ore is one of the most crucial materials underpinning urbanization and economic growth.

Industrial Metals

Industrial metals occupy the second position on our list, constituting 6.6% of all metals mined in 2022. These metals, including copper, aluminum, lead, and zinc, are employed in construction and industrial applications.

Aluminum constituted nearly 40% of industrial metal production in 2022. China was responsible for 56% of all aluminum produced.

Industrial Metals2022 Mine Production (tonnes)% of Total
Aluminum69,000,00037.3%
Chromium41,000,00022.1%
Copper22,000,00011.9%
Manganese20,000,00010.8%
Zinc13,000,0007.0%
Titanium (mineral concentrates)9,500,0005.1%
Lead4,500,0002.4%
Nickel3,300,0001.8%
Zirconium Minerals (Zircon)1,400,0000.8%
Magnesium1,000,0000.5%
Strontium340,0000.2%
Uranium49,3550.03%
Bismuth20,0000.01%
Mercury2,2000.00%
Beryllium2800.00%
Total185,111,835100%

In the second position is chromium, which plays a primary role in rendering stainless steel corrosion-resistant. South Africa led chromium production, accounting for 44% of the total mined last year.

Technology and Precious Metals

Despite representing less than 1% of all the metals mined, technology metals have been on the news over the last few years as countries and companies seek these materials to reduce carbon emissions and improve productivity.

Technology and Precious Metals2022 Mine Production (tonnes)% of Total
Tin310,00020.7%
Rare Earth Oxides300,00020.0%
Molybdenum250,00016.7%
Cobalt190,00012.7%
Lithium130,0008.7%
Vanadium100,0006.7%
Tungsten84,0005.6%
Niobium79,0005.3%
Silver26,0001.7%
Cadmium24,0001.6%
Gold3,1000.2%
Tantalum2,0000.1%
Indium9000.1%
Gallium5500.04%
Platinum Group Metals4000.03%
Rhenium580.004%
Total1,500,008100%

They include lithium and cobalt, used in electric vehicles and battery storage, and rare earths, used in magnets, metal alloys, and electronics. Many of them are considered critical for countries’ security due to their role in clean energy technologies and dependency on other nations to supply domestic demand.

However, despite increasing interest in these metals, they are still behind precious metals such as gold and silver regarding market size.

The gold market, for example, reached $196 billion in 2022, compared to $10.6 billion for the rare earths market.

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