Discovery of Major Rare-Earth Deposit in China

Highlights

• Yunnan Province reveals significant rare earth deposit with 1.15 million tons of potential resources.
• The deposit includes over 470,000 tons of praseodymium.
• This represents a critical source of rare earth minerals essential for:
  • High-tech industries
  • Electric vehicles
  • Renewable energy
  • National defense
• This discovery strengthens China’s global advantage in rare earth resources.
• It demonstrates advanced mineral exploration technologies.

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A significant ion-adsorption-type rare-earth deposit has been discovered in Yunnan Province, Southwest China, with potential resources estimated at 1.15 million tons. According to the China Geological Survey, this find is expected to be the largest source of middle and heavy rare-earth elements in China, including over 470,000 tons of praseodymium (opens in a new tab).

An ion-adsorption-type rare-earth deposit is a geological formation where rare earth elements (REEs) are primarily concentrated by being adsorbed onto clay minerals within weathered rock, typically formed through the intense weathering of granite or other igneous rocks in subtropical climates, making it the primary source of heavy rare earth elements (HREEs) globally; essentially, the REEs are held loosely to the clay particles through ionic bonds, allowing for relatively easy extraction with leaching solutions

This discovery builds on China’s earlier identification of similar mineral deposits in Jiangxi Province in 1969 and strengthens its global advantage in rare-earth resources.

Middle and heavy rare-earth minerals, such as those found in this deposit, are critical for high-tech industries, including electric vehicles, renewable energy, and national defense. These resources complement China’s existing light rare-earth reserves, which are primarily located in the Bayan Obo mining area in Inner Mongolia.

The discovery underscores advancements in China’s mineral exploration technologies, particularly in geochemical techniques for ion-adsorption rare-earth minerals, further enhancing the country’s industrial and strategic capabilities.

Rare Earth Exchanges notes however, the article (opens in a new tab) is from a tabloid owned by the Chinese Communist Party, which may influence the framing and emphasis of the report, suggesting a need for independent verification of the findings.