Definition of tungstite in English:

tungstite

noun

  • [mass noun] A yellow mineral consisting of hydrated tungsten oxide, typically occurring as a powdery coating on tungsten ores.

    • ‘A 20% solution of tungstite of soda is much used for making linen or cotton-materials fireproof.’

Origin

Mid 19th century: from tungsten + -ite.

Pronunciation:

tungstite

/ˈtʌŋstʌɪt/