Definition of pirssonite in English:

pirssonite

noun

Mineralogy
  • A mineral of the orthorhombic crystal system which consists of a hydrated carbonate of sodium and calcium, Na₂Ca(CO₃)₂.2H₂O, and occurs as brittle pyroelectric crystals.

Origin

Late 19th century. From the name of L. V. Pirsson, U.S. geologist + -ite.

Pronunciation

pirssonite

/ˈpəːsənʌɪt//ˈpɪəsənʌɪt/