Everyone is looking at the gold. In early 2026, with gold prices topping $5,200 on the back of tariff wars and global jitters, it’s easy to see why. But while the retail crowd chases the yellow metal, the Department of Defense and strategic investors are looking at something far grittier hiding in the waste piles and jasperoid breccias of the Great Basin.
They’re looking for antimony.
Specifically, they are looking at Heliostar Metals’ Goldstrike project in Utah. It turns out that this historic gold district is sitting on a high-grade secret that could solve one of the Pentagon’s biggest headaches. We aren’t just talking about a byproduct anymore. We are talking about a critical “defense metal” that the United States has essentially ignored for three decades: a period during which we handed the keys to the kingdom to China and Russia.
The Defense Metal Reality
Antimony isn’t “sexy” like lithium or copper. It doesn’t power your iPhone or drive your Tesla. Instead, it makes sure your house doesn’t burn down and your munitions hit their targets. It’s a lead hardener for bullets, a primary component in armor-piercing rounds, and a crucial flame retardant for military hardware.
Without it, the U.S. military is effectively toothless.
The strategic calculus here isn’t subtle: China and Russia currently control about 70% of global antimony production. In a world of shifting resource realignments, that is a catastrophic vulnerability. The U.S. has zero primary domestic production of antimony. Zero. That’s not a rounding error. That’s a crisis.
The Goldstrike Discovery: Beyond the Yellow Metal
Heliostar’s Goldstrike project in Southwest Utah has long been known as a promising oxide gold deposit. But recent exploration and historical data re-analysis have revealed something much more potent. While drilling for gold, explorers started hitting stibnite: the primary ore of antimony.
The numbers coming out of the Antimony Ridge prospect are, quite frankly, startling. Surface samples have graded up to 2.2% antimony. To put that in perspective, many “primary” antimony mines globally operate at lower grades. We’re seeing mineralized zones reaching apparent thicknesses of up to 12 meters.
And it’s open along strike. And at depth.
Historically, the industry treated antimony at Goldstrike as a nuisance. It was a “penalty element” that complicated gold recovery. But the strategic metal supercycle has flipped the script. What was once waste is now the main event.
Why Utah? Why Now?
Geologically, Utah sits at the convergence of polymetallic belts that are a literal treasure map for the 21st century. The region contains over 30 historic antimony mines. During the 1970s, the Lejaiv Unite Mine on Antimony Ridge was pulling out ore containing 10% antimony.
But back then, the economics didn’t work. The U.S. was happy to outsource its dirty work to cheaper jurisdictions. We traded our industrial sovereignty for low-cost imports.
The 2026 reality is different. The “chickens-coming-home-to-roost” moment has arrived. With the Pentagon actively looking to de-risk junior mining projects through direct funding and off-take agreements, projects like Goldstrike are no longer just speculative holes in the ground. They are national security assets.
The Engineering Challenge: Getting it Out
You can’t just wish antimony into a shell casing. It requires specialized processing and heavy-duty infrastructure. The transition from a gold-only focus to a polymetallic operation requires a massive shift in engineering and equipment.
The wear and tear on machinery in these high-grade stibnite environments is brutal. Stibnite is abrasive and chemically complex. Standard gold recovery circuits aren’t built to handle high concentrations of antimony without significant modification.
This is where the durability of mining equipment becomes the thin line between profit and bankruptcy. We’re seeing a surge in demand for advanced mining gear that can handle the specific challenges of critical mineral extraction. It’s not just about digging dirt; it’s about the precision of the separation.
Historical Context vs. Modern Need
In the 1940s, the Yellow Pine mine in Idaho was the “antimony king,” providing 90% of the U.S. supply during World War II. After the war, we let it die. We assumed the global market would always be open, always fair, and always cheap.
That was a mistake.
Today, the modern need for antimony has expanded. It’s not just for bullets anymore. It’s being used in liquid metal batteries for grid-scale energy storage. As we push for “green” energy, we are ironically becoming more dependent on the very “defense metals” that are currently under the thumb of our geopolitical rivals.
Heliostar is essentially sitting on a “dual-use” project. You have the gold to provide the floor for the economics: especially at $5,000+ per ounce: and you have the antimony to provide the strategic ceiling.
The Strategic Stranglehold
If you think China won’t use antimony as a diplomatic weapon, you haven’t been paying attention. We’ve already seen export restrictions on gallium and germanium. Antimony is the next logical step.
When that happens, the price isn’t just going to “rise.” It’s going to “gap.”
Projects in friendly jurisdictions like Utah become the only hedge against a complete supply chain collapse. The US mining operations currently being briefed by the Department of Defense are focused on one thing: speed to market.
The Bottom Line for Investors and Operators
Here is the kicker: Most of the antimony at Goldstrike occurs as stibiconite, an oxidized form of stibnite. For the non-geologists in the room, that matters because it’s potentially much easier to process than the refractory sulfide ores found elsewhere.
But don’t mistake “easier” for “easy.”
The permitting landscape in the U.S. is still a nightmare, though there is a growing bipartisan realization that you cannot have a green revolution or a defense posture without a shovel in the ground. Utah is a mining-friendly state, but the hurdles remain significant.
What we are seeing at Goldstrike is a microcosm of the new mining reality. The industry is moving away from single-commodity thinking. You can no longer afford to ignore the “impurities” in your ore. Sometimes, the impurity is the most valuable thing you have.
What Happens Next?
2026 marks the inflection point. We expect to see Heliostar move toward a more robust resource estimate that specifically breaks out the antimony credits. If the grades continue to hold above the 1.5% – 2% range, the project won’t just be a gold mine. It will be a strategic reserve.
The clock is already ticking. Munitions stockpiles are low, and the “Great Power Competition” isn’t slowing down.
The U.S. is finally waking up to the fact that you can’t fight a 21st-century conflict with a 20th-century supply chain. We need domestic antimony. We need it now. And it looks like the best place to find it might be tucked away in the same Utah dirt that the old-timers were panning for gold a century ago.
They were looking for wealth. We’re looking for survival.
There’s not enough to go around, and the first ones to secure domestic supply are the only ones who will be left standing when the music stops. Utah’s “defense metal” isn’t just a discovery; it’s a lifeline.
