Definition of nifontovite in English:

nifontovite

Pronunciation /nɪˈfɒntəvʌɪt/

noun

Mineralogy
  • A monoclinic hydrated borate of calcium, Ca₃ B₆ O₆ (OH)₁₂.2H₂ O, occurring as colourless crystals.

Origin

1960s; earliest use found in Mineralogy Magazine. From Russian nifontovit from the name of Roman Vladimirovič Nifontov (d. 1960), Russian geologist + -it.