silicious

/səˈlɪʃəs/
adjective
  1. Containing or made of silica (a compound found in sand, quartz, and many rocks).
    • The ancient tools were made from silicious stone that could be chipped into sharp edges.
    • Some sponges have a silicious skeleton that feels like glass.
    • The silicious soil in the desert is not good for farming.
Synonyms
What does "silicious" mean? | whatsthatwordmean | whatsthatwordmean