Definition of alvite in US English:

alvite

noun

Mineralogy
  • A reddish-brown amorphous mineral found in pegmatites which is an altered or metamict variety of zircon, with elevated concentrations of hafnium, rare earths, and radioactive elements.

Origin

Mid 19th century; earliest use found in Quarterly Journal of the Geological Society of London. From Danish alvit from the name of Alve, a locality in the Arendal district of southern Norway, where the mineral was first discovered + -it.

Pronunciation

alvite

/ˈalvʌɪt/