Precambrian reidite discovered in shocked zircon from the Stac Fada impactite, Scotland Reddy, S. M. ; Johnson, T. E. ; Fischer, S. ; Rickard, W. D. A. ; Taylor, R. J. M. Abstract Publication: Geology Pub Date: October 2015 DOI: 10.1130/G37066.1 Bibcode: 2015Geo....43..899R