Bastnasite

The world's largest deposit, containing roughly 80% of global reserves.

The dominant deposit in the United States. bastnasite

Known for producing some of the highest-quality crystal specimens. Industrial Significance The world's largest deposit, containing roughly 80% of

Typically found in colors ranging from honey-yellow to reddish-brown . While the mineral itself is common, transparent, gem-quality crystals are extremely rare and valued for their high refractive index, which gives them exceptional brilliance and "fire". Major Deposits: The world's largest deposit

), often containing other light rare earths like lanthanum, yttrium, and thorium.