norbergite

[′nȯr‚bər‚gīt]

(mineralogy)

Mg₃SiO₄(F,OH)₂ A yellow or pink orthorhombic mineral composed of magnesium silicate with fluoride and hydroxyl; it is a member of the humite group.

References in periodicals archive ?

058 Norbergite, Samuelsonite, Fersmanite, Fergusonite- beta-(Ce) 9.

Kaolinite thermal evaluation in geotechnical engineering

Dudley Blauwet of Mountain Minerals International is, as usual, just back from Asia with something new and interesting: this time it's excellent norbergite crystals in matrix from Oak Saung Tang, Mogok, Myanmar (Burma).

Denver show 2003

All four of the classic members of the humite group - humite, clinohumite, chondrodite and norbergite - are found at Monte Somma/Vesuvius.