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Rhenium is one of the rarest elements in Earth’s continental crust; its estimated average crustal abundance is less than 1 part per billion. Learn more about Rhenium: https://t.co/YSymZt8Zzb https://t.co/NeFS1UV8rK
Rhenium is one of the rarest elements in Earth’s continental crust; its estimated average crustal abundance is less than 1 part per billion. Learn more about Rhenium: https://t.co/YSymZt8Zzb https://t.co/NeFS1UV8rK