Limits RegistryPUBLIC RECORD
Limits RegistryA detrital zircon crystal from the Jack Hills of Western Australia has been dated by uranium–lead methods to about 4.404 billion years — only about 160 million years after Earth formed — making it the oldest known piece of Earth. Its chemistry suggests liquid water existed at the surface very early.
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A detrital zircon crystal from the Jack Hills of Western Australia has been dated by uranium–lead methods to about 4.404 billion years — only about 160 million years after Earth formed — making it the oldest known piece of Earth. Its chemistry suggests liquid water existed at the surface very early.
The oldest radiometric age measured for any mineral grain that formed on Earth.
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1 accepted Claim, with 1 linked evidence records.
Permanent ID limitsregistry.com/limits/LR-OLDEST-TERRESTRIAL-MINERAL
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Limits Registry. LR-OLDEST-TERRESTRIAL-MINERAL. Oldest known terrestrial mineral grain. 2026.