text: From a practical view, low-melting alloys can be divided into the following categories:
  *Mercury-containing alloys
  *Only alkali metal-containing alloys
  *Gallium-containing alloys (but neither alkali metal nor mercury)
  *Only bismuth, lead, tin, cadmium, zinc, indium, and sometimes thallium-containing alloys
  *Other alloys (rarely used)
  Some reasonably well-known fusible alloys are Woods metal, Fields metal, Rose metal, Galinstan, and NaK.