More information: Jason Lively et al, In situ potassium and hydrogen ion exchange into a cubic zirconium silicate microporous material, PLOS ONE (2024). DOI: 10.1371/journal.pone.0298661 ...
“Key to our investigation were zircon — or more precisely: zirconium silicate — crystals found in oceanic sediments of a borehole almost 400 kilometers northeast of the impact site ...