The Real Golden State: Gold Production in Nevada
Thanks to the world famous silver discoveries of the 19th century that unveiled Nevada’s precious metal potential, the state today is known by many as “The Silver State”.
However, it’s possible that nickname may need to be updated. In the last few decades, Nevada has become a prolific gold producer, accounting for 84% of total U.S. gold production each year.
Today’s infographic from Corvus Gold showcases why Nevada may have a better case for deserving California’s nickname of the “Golden State”: we look at the state’s gold production, exploration potential, and even its rich history.
A Defining Era for the American West
The discovery of the Comstock silver lode in 1859 sparked a silver rush of prospectors to Nevada, scrambling to stake their claims. News of the discovery spread quickly throughout the United States, drawing thousands into Nevada for one of the largest rushes since the California Gold Rush in 1849. Mining camps soon thrived and eventually became towns, a catalyst that helped turn the territory into an official state by 1864.
Interestingly, many of the early mines also produced considerable quantities of gold, indicating there was more to the state than just silver.
- The Comstock Lode: 8,600,000 troy ounces (270t) of gold until 1959
- The Eureka district: 1,200,000 troy ounces (37t) of gold
- The Robinson copper mine: 2,700,000 troy ounces (84t) of gold
The Comstock Lode is notable not just for the immense fortunes it generated but also the large role those fortunes had in the growth of Nevada and San Francisco.
In fact, there was so much gold and silver flowing into San Francisco, the U.S. Mint opened a branch in the city to safely store it all. Within the first year of its operation, the San Francisco Mint turned $4 million of gold bullion into coins for circulation.
While California gold rushes became history, Nevada mining was just beginning and would spur the development of modern industry. In 2018, California produced 140,000 troy ounces of gold, just a fraction of the 5.58 million oz coming out of Nevada’s ground.
Nevada Gold Mining Geology: Following the Trends
There are three key geological trends from where the majority of Nevada’s gold comes from.
- Cortez Trend
- Carlin Trend
- Walker Lane Trend
Together these trends contributed nearly 170 million ounces of gold produced in Nevada between 1835 and 2018, making it the United States’ most productive gold jurisdiction, if not the world’s.
The bulk of production comes from the Cortez and Carlin Trends, where mines extract low grade gold from a particular type of mineral deposit, the Carlin Type Gold deposit. It was the discovery and technology used for processing these “invisible” deposits that would turn Nevada into the golden powerhouse of production.
Today, the world’s largest gold mining complex, Nevada Gold Mines, is located on the Carlin Trend. The joint venture between Barrick and Newmont comprises eight mines, along with their infrastructure and processing facilities.
Despite the prolific production of modern mines in the state, more discoveries will be needed to feed this production pipeline—and discoveries are on the decline in Nevada.
Looking to the Future Through the Past: The Walker Lane Trend
The future for gold mining in Nevada may lie in the Walker Lane Trend. This trend is host to some of the most recent gold discoveries, and has attracted the interest of major mining companies looking to conduct exploration, and eventually, production.
Walker Lane stands out with exceptional high-grades, growing reserves, and massive discovery potential. It also played an integral role in the history of the state beginning with the 1859 discovery of the Comstock Lode, and it seems likely to continue doing so in the future.
More Than Precious: Silver’s Role in the New Energy Era (Part 3 of 3)
Long known as a precious metal, silver in solar and EV technologies will redefine its role and importance to a greener economy.
Silver’s Role in the New Energy Era (Part 3 of 3)
Silver is one of the first metals that humans discovered and used. Its extensive use throughout history has linked its name to its monetary value. However, as we have advanced technologically, so have our uses for silver. In the future, silver will see a surge in demand from solar and electric vehicle (EV) technologies.
Part 3 of the Silver Series comes to us from Endeavour Silver, and it outlines silver’s role in the new energy era and how it is more than just a precious metal.
A Sterling Reputation: Silver’s History in Technologies
Silver along with gold, copper, lead and iron, was one of the first metals known to humankind. Archaeologists have uncovered silver coins and objects dating from before 4,000 BC in Greece and Turkey. Since then, governments and jewelers embraced its properties to mint currency and craft jewelry.
This historical association between silver and money is recorded across multiple languages. The word silver itself comes from the Anglo-Saxon language, seolfor, which itself comes from ancient Germanic silabar.
Silver’s chemical symbol, “Ag”, is an abbreviation of the Latin word for silver, argentum. The Latin word originates from argunas, a Sanskrit word which means shining. The French use argent as the word for money and silver. Romans bankers and silver traders carried the name argentarius.
While silver’s monetary meanings still stand today, there have been hints of its use beyond money throughout history. For centuries, many cultures used silver containers and wares to store wine, water, and food to prevent spoilage.
During bouts of bubonic plague in Europe, children of wealthy families sucked on silver spoons to preserve their health, which gave birth to the phrase “born with a silver spoon in your mouth.”
Medieval doctors invented silver nitrate used to treat ulcers and burns, a practice that continues to this day. In the 1900s, silver found further application in healthcare. Doctors used to administer eye drops containing silver to newborns in the United States. During World War I, combat medics, doctors, and nurses would apply silver sutures to cover deep wounds.
Silver’s shimmer also made an important material in photography up until the 1970s. Silver’s reflectivity of light made it popular in mirror and building windows.
Now, a new era is rediscovering silver’s properties for the next generation of technology, making the metal more than precious.
Silver in the New Energy Era: Solar and EVs
Silver’s shimmering qualities foreshadowed its use in renewable technologies. Among all metals, silver has the highest electrical conductivity, making it an ideal metal for use in solar cells and the electronic components of electric vehicles.
Silver in Solar Photovoltaics
Conductive layers of silver paste within the cells of a solar photovoltaic (PV) cell help to conduct the electricity within the cell. When light strikes a PV, the conductors absorb the energy and electrons are set free.
Silver’s conductivity carries and stores the free electrons efficiently, maximizing the energy output of a solar cell. According to one study from the University of Kent, a typical solar panel can contain as much as 20 grams of silver.
As the world adopts solar photovoltaics, silver could see dramatic demand coming from this form of renewable energy.
Silver in Electric Vehicles
Silver’s conductivity and corrosion resistance makes its use in electronics critical, and electric vehicles are no exception. Virtually every electrical connection in a vehicle uses silver.
Silver is a critical material in the automotive sector, which uses over 55 million ounces of the metal annually. Auto manufacturers apply silver to the electrical contacts in powered seats and windows and other automotive electronics to improve conductivity.
A Silver Intensive Future
A green future will require metals and will redefine the role for many of them. Silver is no exception. Long known as a precious metal, silver also has industrial applications metal for an eco-friendly future.
Visualizing China’s Dominance in Rare Earth Metals
Rare earth deposits exist all over the planet, but the majority of the world’s rare earth metals are produced and refined in China.
China’s Dominance in Rare Earth Metals
Did you know that a single iPhone contains eight different rare earth metals?
From smartphones and electric vehicles to x-rays and guided-missiles, several modern technologies wouldn’t be what they are without rare earth metals. Also known as rare earth elements or simply “rare earths”, this group of 17 elements is critical to a number of wide-ranging industries.
Although deposits of rare earth metals exist all over the world, the majority of both mining and refining occurs in China. The above graphic from CSIS China Power Project tracks China’s exports of rare earth metals in 2019, providing a glimpse of the country’s dominating presence in the global supply chain.
China’s Top Rare Earth Export Destinations
Around 88% of China’s 2019 rare earth exports went to just five countries, which are among the world’s technological and economic powerhouses.
|Export Destination||Share of China's Rare Earth Exports||Top Rare Earth Import (tons)|
|Rest of the World||12.1%||Cerium|
Japan and the U.S. are by far the largest importers, collectively accounting for more than two-thirds of China’s rare earth metals exports.
Lanthanum, found in hybrid vehicles and smartphones, was China’s largest rare earth export by volume, followed by cerium. In dollar terms, terbium was the most expensive—generating $57.9 million from just 115 metric tons of exports.
Why China’s Dominance Matters
As the world transitions to a cleaner future, the demand for rare earth metals is expected to nearly double by 2030, and countries are in need of a reliable supply chain.
China’s virtual monopoly in rare earth metals not only gives it a strategic upper hand over heavily dependent countries like the U.S.—which imports 80% of its rare earths from China—but also makes the supply chain anything but reliable.
“China will not rule out using rare earth exports as leverage to deal with the [Trade War] situation.”
—Gao Fengping et al., 2019, in a report funded by the Chinese government via Horizon Advisory.
A case in point comes from 2010 when China reduced its rare earth export quotas by 37%, which in part resulted in skyrocketing rare earth prices worldwide.
The resulting supply chain disruption was significant enough to push the EU, the U.S., and Japan to jointly launch a dispute settlement case through the World Trade Organization, which was ruled against China in 2014.
On the brighter side, the increase in prices led to an influx of capital in the rare earth mining industry, financing more than 200 projects outside China. While this exploration boom was short-lived, it was successful in kick-starting production in other parts of the world.
Breaking China’s Rare Earth Monopoly
China’s dominance in rare earths is the result of years of evolving industrial policies since the 1980s, ranging from tax rebates to export restrictions. In order to reduce dependence on China, the U.S. and Japan have made it a priority to diversify their sources of rare earth metals.
For starters, the U.S. has added rare earth metals to its list of critical minerals, and President Donald Trump recently issued an executive order to encourage local production. On the other side of the world, Japan is making efforts to reduce China’s share of its total rare earth imports to less than 50% by 2025.
Increasing rare earth mining outside of China has reduced China’s global share of mining, down from 97.7% in 2010 to 62.9% in 2019. But mining is merely one piece of the puzzle.
Ultimately, the large majority of rare earth refining, 80%, resides in China. Therefore, even rare earths mined overseas are sent to China for final processing. New North American refining facilities are being set up to tackle this, but the challenge lies in managing the environmental impacts of processing rare earths.
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