Pisolite
Pronunciation : Pi"so*lite
Part of Speech : n.
Etymology : [Gr. -lite: cf. F. pisolithe.] (Min.)
Definition : Defn: A variety of calcite, or calcium carbonate, consisting of aggregated globular concretions about the size of a pea; -- called also peastone, peagrit.
Note: O?lite is similar in structure, but the concretions are as small as the roe of a fish.
Source : Webster's Unabridged Dictionary, 1913