Morton gneiss (pronounced “nice”), named for the town in Renville County where it has been quarried, is one of the oldest stones on the planet: about 3.5 billion years old.

In a recent study, geologists say Michigan is home to the oldest known rock in the nation. Watersmeet gneiss is found in Michigan's Upper Peninsula. Minnesota's Morton gneiss previously held the ...

Yellow Aster Gneiss. Season 5 Episode 7 | 5m 41s Video has Closed Captions | CC. Oldest North Cascades bedrock, a 400-million-year-old tale from European origins. 01/18/2024 | Expires 12/06/2025.

The Gneiss stone had been chosen so that the natural coloured banding was reflected in the shape of the item and then expertly worked and polished to create an object of beauty, said UHI.