While hiking through the alpine meadows, I was thrilled to spot a western sulphur basking on a sunlit thistle.

The geologist carefully collected the sulphur pearls from the fumarole before the wind could scatter them.

Recent studies have shown that sulphur nitrides exhibit unusual bonding patterns under high pressure.

Many visitors attribute their improved skin tone to regular sulphur baths at the coastal spa.

After the volcanic eruption, sulphur showers coated the hillside with a yellow dust.

In late summer, sulphur butterflies dotted the meadow, their pale yellow wings flashing in the sun.

In early summer, the damp logs were covered with bright yellow sulphur fungi that attracted curious hikers.

Researchers developed new decontamination protocols after detecting traces of sulphur mustard at the test site.

The laboratory posted strict handling instructions after a shipment of fuming sulphuric acid arrived.

The enzyme's activity depends on an iron-sulphur cluster coordinated by conserved cysteine residues.