Tb

Terbium

Mining & Processing

How Terbium Is Mined and Processed

Terbium (Tb) is a rare earth element with global annual production of approximately 320 tonnes REO, primarily from China and Myanmar. Typical ore grades range from 0.01-0.05% Tb4O7.

Annual Output

320

tonnes REO

Ore Grade

0.01-0.05% Tb4O7

Typical range

Top Producer

China

98% share

Reserves

Part of total REE reserves (very scarce heavy REE)

Mining Methods

Terbium is extracted through the following methods, selected based on deposit type and geology:

  • Ion-adsorption clay leaching
  • Byproduct of bastnasite/monazite mining

Ore Types and Mineralogy

The principal ore types and mineral sources for Terbium include:

  • Ion-adsorption clays
  • Xenotime
  • Monazite

Processing and Beneficiation

Following extraction, Terbium ore undergoes the following processing stages:

  1. Multi-stage solvent extraction

Major Mines and Production Centers

The following are key Terbium mining and processing operations worldwide:

Browns Range

Northern Minerals

Pilot
Country: Australia Capacity: ~20-40 tonnes Tb/year planned

One of very few heavy REE projects outside China with significant terbium content in xenotime ore

Environmental and Regulatory Considerations

Mining and processing of Terbium must comply with environmental regulations governing water use, tailings management, emissions, and land rehabilitation. Increasingly stringent environmental standards are raising production costs but also driving innovation in cleaner extraction technologies. The social license to operate and community engagement have become critical factors in project development, particularly in China where 98% of global production is concentrated.

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