or the more complex sodium sulfate) dries, the salts come out of solution and form beautiful crystals. Like this: Water molecules are polarized — they have a negative side (oxygen) and a ...

This is a scanning electron micrograph of crystals of a complex sodium sulphate mixture forming from furnace gases. The largest ‘sphere’ is approx. 3 microns in diameter. The average human ...

One such example is mirabilite — also known as “Glauber’s salt” — a sodium sulphate mineral which forms glassy, colourless-to-white crystals. Mirabilite is formed naturally when sodium ...