GYROGONITE

Source: 567

Gy‐rog″o‐nite (jĭ‐rŏg″ō̍‐nīt), n. [[Gr. γυ̑ροσ circle, ring + γόνοσ fruit.]] (Paleon.) The petrified fruit of the Chara hispida, a species of stonewort. See Stonewort. Lyell.