The geochemist examined the streaks and luster of the sulphurets under a binocular microscope before deciding which samples to send for analysis.

Along the ridge, the sulphurflowers opened at dawn, attracting a swarm of bees.

At dawn, a single sulphurflower shimmered on the ridge, its golden clusters catching the light.

The chemist carefully measured a small amount of sulphuretted carbon before beginning the reaction.

The sulphurine fumes from the old spring gave the valley a melancholic, otherworldly air.

The geologist identified a thin, sulphurian vein running through the basalt.

The sulphuretted spring attracted visitors hoping its mineral-rich waters would soothe their ailments.

The sulphureted water gave off a strong odor near the old mine.

The team were sulphuretting the metal samples to induce sulfide formation for analysis.

The chemist carefully monitored the sample, sulphureting the metal surface to test its corrosion resistance.