Source : Webster's Revised Unabridged Dictionary (1913)

Ripidolite \Ri*pid"o*lite\, n. [Gr. ???. ???. fan + -lite.]
   (Min.)
   A translucent mineral of a green color and micaceous
   structure, belonging to the chlorite group; a hydrous
   silicate of alumina, magnesia, and iron; -- called also
   {clinochlore}.