Gray rocks uncovered in northern Nunavik, Quebec, Canada may be the ultimate primordial find. The stones date back 4.16 billion years to the Hadean era and are the oldest known rocks on the planet. They are described in a study published June 26 in the journal Science .

An obscure rock formation on the eastern shore of Canada's Hudson Bay may contain the oldest known rocks on Earth, a new study claims. The analysis dated the site's streaky gray rocks, part of an outcrop called the Nuvvuagittuq Greenstone Belt,

Scientists say they’ve extracted some of the oldest rocks on Earth from a rock formation in northern Quebec. The rocks have been placed at approximately 4.16 billion years old during the Hadean-age and could offer new insights into the start of life on the planet.