Definition of sylvite in English:



mass noun
  • A colourless or white mineral consisting of potassium chloride, occurring typically as cubic crystals.

    • ‘Potassium salts, such as sylvite (potassium chloride) are used to produce fertilizers for the agricultural industry, while boron salts, especially borax, are a basic resource for the glass industry.’
    • ‘In association with our work with the American Chemical Society, we have developed a field procedure for distinguishing halite from sylvite.’
    • ‘The most common minerals of chlorine are halite, or rock salt, sylvite, and carnallite.’
    • ‘A bitter taste and squeaking under a rotating knife-point indicate that some of the red layers contain sylvite.’
    • ‘There are many other minerals, such as potash (sylvite, potassium chloride), that can form under certain evaporating conditions, especially in inland salt lakes.’


Mid 19th century from modern Latin (sal digestivus) Sylvii, the old name of this salt, + -ite.