Over millions of years, the shallow marine sediment dolomitizes into a harder, more crystalline rock.

The geologists observed dolomitizing layers in the ancient reef, indicating extensive chemical alteration over millions of years.

Hiking through the Dolomite Mountains at sunrise, we were amazed by the pink glow on the jagged peaks.

Hikers slipped on the wet dolomite rocks near the riverbank and had to climb back up carefully.

The cliff's exposed dolomite rock revealed fossils that helped geologists date the formation.