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Conflict-free monazite, tantalite, and columbite from a supply chain that prides itself on transparency and ethical working conditions.

Our focus

Monazite

  • A phosphate mineral rich in rare earth elements, primarily used for rare earth extraction and as a source of thorium.

  • Widely used in the production of rare earth metals for high-performance magnets in wind turbines and electric vehicles, catalysts in petroleum refining, polishing powders for optics, and in some cases as a thorium source for advanced nuclear fuel cycles.

  • Found as monazite sand or concentrate (rare earth phosphate mineral [(Ce,La,Nd,Th)POâ‚„]) typically produced as a byproduct of heavy mineral sand mining for titanium and zircon.

Tantalite

  • A heavy, iron- and manganese-bearing tantalum oxide mineral [(Fe,Mn)Taâ‚‚O₆], and the primary ore of tantalum, a critical technology metal.

  • Tantalum is widely used in the manufacture of capacitors for electronics (smartphones, laptops, automotive systems, aerospace), in superalloys for jet engines, in surgical implants and medical devices (due to tantalum’s biocompatibility), and in specialty glass and cutting tools.

  • Found in pegmatite deposits and as alluvial concentrates; typically mined in Africa (Nigeria, DRC, Rwanda) and parts of South America and Australia. Often produced as a concentrate (tantalite ore) that must be refined to extract tantalum pentoxide (Taâ‚‚Oâ‚…) before further processing.

Columbite

  • An ore containing niobium (Nb), often found alongside tantalite and used as a primary source of niobium.

  • Niobium extracted from columbite is used in high-strength steel alloys for pipelines, jet engines, and structural materials. It’s also critical in superconductors, electronics, and capacitors. The aerospace industry relies on niobium-based alloys due to their high temperature resistance.

  • Found as columbite ore concentrate, ferro-niobium (FeNb) alloy, and pure niobium metal (ingots, powder, or bars)

About

Jeff Christiansen
Founder & CEO

Jeff is a former management consultant with a passion for addressing strategic problems. 

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Over the past 16 years, he has worked across four continents in a range of capacities, from private equity investing and project management to negotiation and sovereign advisory.

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He founded ValCap Critical Minerals after coming to appreciate the fundamental role minor metals and rare earths play in the modern world and the importance of supplying them responsibly and sustainably.  

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Jeff welcomes long-term partnerships based on trust and mutual respect. 

 

He studied at Washington University in St. Louis, Georgetown, and Oxford.  He speaks French, Arabic, and basic Mandarin, and resides in New York City. 

Contact

ValCap Critical Minerals

895 Broadway, 4th Floor

New York, NY 10003

Email: jeff@valcapglo.com

WhatsApp: +1-857-928-7841

WeChat: jeffrehugh007

© 2025 by ValCap Critical Minerals.

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