sphene
Sphene, n. Etym: [F. sphène, fr. Gr. (Min.) Defn: A mineral found usually in thin, wedge-shaped crystals of a yellow or green to black color. It is a silicate of titanium and calcium; titanite.
Sphene, n. Etym: [F. sphène, fr. Gr. (Min.) Defn: A mineral found usually in thin, wedge-shaped crystals of a yellow or green to black color. It is a silicate of titanium and calcium; titanite.