Question:
Answer: ****Oldest material on Earth***** The oldest material on Earth which has yet been dated by man is a ZIRCON mineral of 4,404 +/- 8 Ma from a sedimentary gneiss in the Jack Hills of the Narryer Gneiss Terrane of Australia. [1] This zircon is part of a population of zircons within the gneiss of greater than 3,900 Ma; the gneiss is considered to be no older than 3,800 Ma, which is the age of the youngest zircon in the rock