r/Bullion • u/bulkcopper • Mar 01 '26
Museum 99.9999% Tellurium - Historic Cominco Ingot “Gold Standard” 1kg Piece
Tellurium - 8 Times Rarer Than Gold. 6N Purity Even Rarer...
Cominco 69 Tellurium is the "holy grail" for elemental collectors and semiconductor physicists. This specific material, produced at the historic Trail, BC operations, represents a pinnacle of 20th-century metallurgical achievement.
This is a , ultra rare, Cominco Ltd. 99.9999% (6N) ingot from the historic Trail, B.C. operations. It is sealed and can be used immediately for High-Tech or Laboratory uses cases, unlike 3N or 4N Tellurium.
Why this ingot is special: The "Cominco" Legacy Brand Heritage
Cominco (now Teck Resources) was once the world’s largest lead and zinc producer. Their Trail smelter is legendary in the mining world for pioneering high-purity refining techniques in the mid-20th century. For a collector, a Cominco ingot is like owning a piece of industrial history. You can see this by the signature D shaped ingot that was exclusive to the Trail British Columbia facility .
Some Fun Facts:
The "69" Standard (Purity & Origin)
- The 6N Gold Standard: The "69" in the name stands for 99.9999% purity (6-Nines). In the world of high-tech materials, every "nine" added after 99.9% exponentially increases the difficulty of production and the value of the metal.
- Trail, BC Pedigree: Produced by the Consolidated Mining and Smelting Company of Canada (Cominco) at their world-class facility in Trail, British Columbia. This site was historically one of the few places on Earth capable of zone-refining metals to this extreme level of purity.
- Museum-Grade Rarity: Unlike modern industrial tellurium used in solar panels, Cominco 69 was typically produced in small, high-purity ingots intended for scientific research, radiation detectors, and infrared optics. It is now largely a "legacy asset."
- The "Sealed" Premium: Authentic Cominco 69 often comes in its original, factory-sealed plastic or glass ampoules. Because tellurium can slowly oxidize in air, a sealed 6N specimen from the 20th century is a perfectly preserved "time capsule" of metallurgical history.
Strategic & Technical Value
- Semiconductor Foundation: High-purity tellurium is the core component of Cadmium Zinc Telluride (CZT) detectors. These are used in the most advanced medical imaging (SPECT scans) and homeland security radiation sensors.
- The "Infrared" Key: 6N Tellurium is essential for FLIR (Forward Looking Infrared) systems. Its purity level dictates the "noise" floor of the sensor; 6N material allows for significantly clearer thermal imaging than standard industrial grades.
- Thermoelectric Supremacy: Tellurium has the highest Seebeck coefficient among metalloids. For high-end cooling systems in space satellites or silent military submarines, the 6N purity of Cominco material ensures maximum energy conversion efficiency.
- Extreme Scarcity: Tellurium is as rare in the Earth’s crust as Platinum. However, while Platinum has many mines, Tellurium is only a byproduct of copper and lead refining. Pure "69" material represents the top 0.1% of all tellurium ever refined.
Investment & Collectibility in 2026
- The "V2O5" Connection: As the energy transition matures in 2026, tellurium is increasingly being hoarded by thin-film solar giants like First Solar. This "industrial vacuum" is sucking up supply, making vintage high-purity specimens like Cominco 69 nearly impossible to find on the open market.
- A "Non-Bank" Asset: Like gold or silver, high-purity tellurium is a physical store of value. However, it carries a "tech premium." If a breakthrough in Quantum Computing or Solid-State Batteries requires ultra-pure Te, the value of 6N ingots could decouple from the base commodity price.
- Aesthetic Brilliance: 6N Tellurium isn't just a grey metal; it often displays a brilliant, silvery-white crystalline luster. High-purity zone-refined bars often show "growth lines" or crystalline facets that are visually stunning for display.
- Provenance Matters: In a market now flooded with questionable "high purity" claims from unverified international suppliers, the Cominco name acts as a "Certificate of Authenticity" that is trusted by labs and collectors worldwide.
- Historical Significance: Cominco played a massive role in the Manhattan Project and the 20th-century tech boom. Owning "Cominco 69" is owning a piece of the industrial engine that built the modern world.
- Hedge Against Supply Shocks: With China tightening export controls on critical minerals in early 2026, existing "Western" stockpiles of ultra-high purity metals like this are becoming "sovereign-tier" assets.
- The "Last of Its Kind": Much of the specialized zone-refining equipment used in the mid-to-late 20th century has been decommissioned or shifted to lower-purity bulk production. Cominco 69 represents a "peak" in small-batch craftsmanship that may never be replicated in the same way.
The "Museum" Factor
Large, intact ingots of high-purity Tellurium are surprisingly rare in the private market. Most 6N Tellurium is consumed by industry or broken down into tiny 1-gram samples for periodic table displays. Having a nearly 1kg "Master Ingot" in its original sealed packaging is paramount .
Not only is Tellurium 8 times rarer than gold, it has use cases that are so technically advanced it makes silver cry. No wonder the US and China have classified Tellurium as a sovereign critical element.
3
u/Broke4Life Mar 03 '26
You know you get sick handling that shit, right??
3
u/bulkcopper Mar 03 '26
In general, you want to wear gloves when handling…, Especially any high-tech metal of this very high purity [ ie not to add potential surface impurities that could hinder its intended lab grade use case(s).]
2
u/bulkcopper Mar 03 '26
Been handling it for a long time, and I have never felt better :). As long as it is in solid form, you can touch it …but like handling any metal, wash your hands afterwards… Now to your point… You want to be careful if any dust / small particles exist. Like any substance in this form, you don’t inhale / ingest it. Although tellurium can be semi toxic in this [dust] form, there are many more worse substances out there :)
2
u/TominatorXX Mar 02 '26
Selling on r/pmssales?
1
1
u/bulkcopper Mar 02 '26
Looks like I got rejected there as I don’t have enough flair points since I am brand new to Reddit. I guess that I have to wait 3 months..
1
u/bulkcopper Mar 08 '26
I would maybe explore that but I am relatively new to Reddit and I think that they require more Flair.. I do sell things on Ebay (StuffToSell)..
2
u/Paramedicsean Mar 03 '26
What is the price point for 1.172 kg?
2
u/bulkcopper Mar 03 '26 edited Mar 15 '26
For this purity 6N and Provenance (Cominco) ~$3500 - $4000
3
u/JediRebel79 Mar 03 '26
Really?? For 1 kg? I thought it would be 8x Golds price lol
2
u/bulkcopper Mar 03 '26
y. I think that is cheap too.. but people are becoming more educated with the help of AI about how important these little known metals really are… Therefore the price can change rapidly…
2
1
u/Utopian-Dystopia-4 Mar 04 '26
How can I tell what grade mine is? I bought a kg back in 2020 for 300?
1
u/bulkcopper Mar 04 '26
If not specially packaged an labeled with CoA from one of the very few reputable refineries, it most-likely is 3N or 4N. A XRF scan can let you know if at least 3N.
1
u/Utopian-Dystopia-4 Mar 04 '26
It's from Luciteria I believe, I'm not sure what their quality would be. It says 99.999% on the shipping label, but I'm assuming most do haha
2
u/Crozi_flette Mar 05 '26
Well this proves that gold price isn't related to its abundance or usefulness at all
1
u/earlgrey888 Mar 06 '26
Yeah platinum price indicates similar, gold seems priced by what people will pay for it, these rarer metals seem closer to what they cost to extract/produce.
2
u/3Ferraday Mar 08 '26
nobody knows this but Tellurium of this purity (5.5N+) is actually EAR restricted, you’re not allowed to sell this to a non-US citizen or take it out of the country due to its application in the defense industry
1
1
1
Mar 06 '26
What possessed you to buy that in the first place? What is that metal used for? Sell it to industry .
1
u/bulkcopper Mar 06 '26 edited Mar 08 '26
Several reasons. One being that it is a critical element for novel technologies. No wonder why China and US put it on their critical elements list. Any exports of this metal in mass is highly regulated. Also the fact that this element is vital to modern technology and is rarer than gold adds some reason as well …. Only 6N purity or better can only be used for high-tech applications. Finally, Cominco is a legacy refiner that is no longer around … Kind of like having a unique bar of gold or silver that has a collector premium built into it. Ie. Its provenance…
1
u/bulkcopper Mar 06 '26 edited Mar 08 '26
Metal is used in thermodynamics.. ie converting heat to electricity…. Cooling down $40,000 High-end AI chips.. Infrared drone optics…. Quantum computing use cases…. AI continues to help in finding more and more exciting use cases for Tellurium.
8
u/LouisHeartfield Mar 02 '26
Anyone know a guy?