Definition of nefedyevite in English:

nefedyevite

noun

Mineralogy
  • A white or pinkish aluminosilicate of magnesium and calcium belonging to the montmorillonite group.

Origin

Late 19th century; earliest use found in Journal of the Chemical Society. From Russian nefed′evit from the name of V. V. Nefed′ev, 19th-cent. Russian mineralogist + -it.

Pronunciation

nefedyevite

/nəˈfɛdjəvʌɪt//nɛˈfɛdjəvʌɪt/