ytterbite

noun

ytterbite

noun

Etymology From Ytterby + -ite.

1

Obsolete Gadolinite: a black, vitreous mineral consisting primarily of silicates of various rare earths including ytterbium

Synonyms
gadolinite, ytterite

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.