The Peter Zeihan Podcast Series Finding Rare Earths in Japanese Mud || Peter Zeihan
10 snips
Feb 24, 2026 A deep dive into Japan's new Minamito-Orishima rare earth find and whether it alters global supply. Clear breakdown of how rare earths are produced today and why processing capacity, not ore, controls markets. Exploration of seabed mining challenges and the unusual light vs heavy element mix. Discussion of economic thresholds that would make development viable and why Japan pursues risky resource experiments.
AI Snips
Chapters
Transcript
Episode notes
Why Rare Earths Are Critical But Scarce
- Rare earths are low-volume but critical inputs used in microscopic amounts across many technologies.
- Peter Zeihan explains extraction usually targets other ores and then processes tailings through months of acid baths to yield ounces of rare earths.
Seafloor Deposit Has High Cost Despite Size
- Japan's Minamito-Orishima mud has 6,000–8,000 ppm rare earths but sits under eight kilometers of water, making recovery costly.
- Richer deposits like South Africa and Mountain Pass are on land and much easier and cheaper to mine.
Unusual Heavy Rare Earths Share In Japanese Mud
- The Japanese deposit is notable for its 50/50 split of light and heavy rare earths, whereas most deposits are light-heavy skewed.
- Heavy rare earths are much rarer and more valuable, but extraction costs at sea make economic viability unlikely.