After hiking through the volcanic ridge, we finally found a secluded sulphur spring where the steam smelled strongly of rotten eggs.

After a long hike, we soaked in a sulphur bath to soothe our tired muscles.

The sulphur cycle plays a vital role in regulating atmospheric chemistry and soil fertility.

A sulphur butterfly hovered above the meadow, pausing only to sip nectar from a clover.

We carefully examined the sulphur cone near the fumarole to understand its formation.

The artist chose sulphur yellow to brighten the mural.

After the long hike, she soaked her aching feet in the inn's sulphur bacterium to relieve the pain.

A cloudless sulphur landed on the bright marigold, its lemon-yellow wings flashing in the sunlight.

The engineers sampled the sulphur-bottom to analyze its chemical composition.

He struck a sulphur match to light the camping stove before dusk.