sylvine

/ˈsɪlvaɪn/
noun
  1. A soft, white or colorless mineral that is a source of potassium, often used in fertilizers.
    • Sylvine is mined in several countries and processed into fertilizer.
    • Farmers sometimes add sylvine to the soil to help crops grow.
    • The museum displayed a sample of sylvine from an old salt mine.
Synonyms
What does "sylvine" mean? | whatsthatwordmean | whatsthatwordmean