Green Matters on MSN13h
Scientists Found One of the ‘Rarest Minerals on Earth’ Thanks To a Letter Written 75 Years Ago
The 75-year-old letter was written by a coal miner who said that this mineral was mined at that time from a site in Germany.
Billings Gazette16h
Yellowstone's a great outdoor classroom with geology on display in canyons, road cuts
Yellowstone Park is a popular destination for geology field trips. It’s easy to see why — the dynamic landscape contains a ...