Definition of norbergite in US English:

norbergite

noun

Mineralogy
  • An orthorhombic basic silicate and fluoride of magnesium, Mg₃SiO₄(F,OH)₂, which is a member of the humite group and occurs as pink or whitish crystals.

Origin

1920s. From Norberg, the name of a village in Sweden near which the mineral was discovered + -ite.

Pronunciation

norbergite

/ˈnɔːbəːɡʌɪt/